Armstrong

prove this: cos(x) over 1+sin(x) equals sin(x) + cos(x) - 1 over sin(x) - cos (x) +1 that is number one question, here is the second one. cos(x) cot(x) over cot(x) - cos(x) equals cos(x) + cos(x) sin(x) over 1 - sin(x) , please put some explanation on the steps that you are doing. thanks. and give some advice on how to solve such.

soon i will have my 4 by 1.5 by 1.5 feet aquarium tank, now i am thinking if i could have guppies, mollies, dragon fin fish, pleco, flowerhorn, and alligator gar all together in there. will it be fine?

please give me solutions and explanations so that i can understand. Find the sum: 1.) 23degrees,22seconds + 57degrees,19minutes thats would be all. 10 points for well answered.

i have this dog i bought from my friend, its a smart dog because it can answer math questions like 1+6 and it will bark 7 times. here is my problem, its been a week now since my granny visit in our home, and new that my dog was smart. she then ask it 10000 + 10000, until now, my dog is stil barking, what should i do?

my chicken is (tyler) a make chicken is acting weird this past few days, whenever i get close to him, its charging at me and trying to peck me, what should i do?

in my breeding tank, i got 7 female endlers (from stream near our home, im from philippines) and 2 male guppies (from the pet store). now, its already about 2 months and i only have 29 babies all in all, do you guys think its the cross breed fry or maybe the female was just already pregnant before i put them together with guppies? i cant wait to see whats gonna happen next, what do you think? will they ever mate and will i ever have a crossbreed fry? those 29 babies are colorless, the biggest is 5/4 cm. they are in separate tank togeTHeR with one small red eyed pleco. ... oh one more question. will molly breed with guppies? my molly is pregnant also.

i have one aquarium and 2 large basin in our terrace, every noon to afternoon, it is directly hit by suns rays, i got no problem with the 2 basin, but for the aquarium, in just one week, the algae is already very visible, is everywhere. do you think i should just put the aquarium inside where sun doesnt directly hit it? by the way, my plants in the aquarium is producing so many roots, its like ball of roots. what should i do with that? and will algae be a home for beneficial bacteria? because my filter is full of algae.

guys, is it worth buyying a 15 -20 piece of ceramic ring for $2, its size is 3/4 of an inch. i dont know if im gonna buy it. i think its expensive. will i just use a drinking straw?

i created my own plastic bottle filter powered by air pump, my problem is that there is no available biofilter or filter media in the store. my question is will those beneficial bacteria grow in regular stones, rocks or gravels? and if it works, will i just cycle it in my aquarium with fish in it? some says cycle it first without fish, just fish food and maybe dead fish to produce beneficial bacteria in the

i got different ideas about filter. first is the water goes to external mechanical filter connected to water pump then connected to the bio filter then finally goes back to aquarium. that's my main plan but i can afford it now. second thing is a plastic bottle with media inside it and enclosed by foam so that debris wont build up in the media, it will be powered by air pump. as what i understand is that when water circulated in the media, beneficial bacteria will build up in there and it will be a good thing. by the way, how many weeks would it take for beneficial bacteria to build up in the media? and should i just clean the mechanical filter? but not the bio filter?

will the stones, rocks, pebbles sand etc. aquarium substrate can be colonized by good bacterias to kill get rid of ammonia? or can i even use the medias as substrate to provide home for good bacterias? aside from buying good bacterias to kill ammonia, what other way to have it, will it just normally be produced in my aquarium? or should i really buy one? please give more advice beside answering my questions.

hey guys, i have to ask something about the aquarium filter. do filter media should have good bacteria to fulfill its purpose? do those good bacteria just build up in there without me buying that good bacteria in store? do i still have to change water if it is already clean because of not having ammonia? should i just clean the mechanical filter? give me some ideas guys, 10 points is waiting.

ok, here is what i have in my tank: 1 pleco, 5 mollies, 20 guppies, 4 gobies, and finally 2 baby mollies. there were no problems before until those four gobies were added in my tank(by the way, those gobies i have was caught in the stream by me) i dont know why did my two baby mollies (3 weeks old) disappearared. do you guys think its the gobies who eat those baby mollies because they got a wide mouth or the pleco? im so sad those baby were gone. what can you say guys?

yesterday, i caught 4 gobies in the stream (im from philippines by the way) i think they are goby because they look like goby. i did some research about it and some comparisons and thats where i get satisfied, they are bottom dwelers and i love it. now, heres my question: do they eat algae, chopped tomato, ( please give some possible foods) will they be fine with my pleco? and one more thing, 10 points for who ever can explain well, why my pleco is always under the rock? it doesnt want to move around, its already 3 days since i buy it a

nd i dont see it explore the aquarium?

First of all, im from philippines, we got hot and cold seasons only, it doesnt snow here. Second, im planing to have a pond 1.2 x 2.5 meters, it will be a home for my aquatic pets because their aquarium is hard to maintain, imagine cleaning 1 aquariums every week. Here are my pets: lots of guppies, freshwater crab (i caught from river) RES turtles, pond snails, freshwater clams, and im planning to add shrimps( im gonna buy 6 pairs). By the way, no crabs or turtle can get away from there, i will create a unclimable terrain. Now here is the problem, how can i make the water wave or have a current and stuffs without creating another problem because of that? Because you see, it requires wave for clams to have food and crabs to lay eggs. Any suggestion to my questions or in my plan?

Lets talk about freshwater plants. In my own thinking, the more plants you have in aquarium, big container, or pond it will always benefit the scpicies living there right? Now, i am planing to create a 1.2 x 2.5 meters pond with 1 meter x 1 meter as the deepest to shallower point in the pond, my question is, can i just have lots of plants insted of having a filter and water pump? Will that pond survive with my: lots of guppies, red clawed crab, shrimps, nails, clams, insects and if possible, some red eared slider... What do you think?

One of my female guppy that i caught in the river gives birth, its a twin by the way. Is that normal? I mean just two baby guppy? And what i did next is i transfered the two baby in other container, will they not miss their mom? Is it ok for them to stay untill they grow bigger? And, how long will it take untill female guppy is ready to have a mate and gives birth again? Answer all of this for ten points.

I got this snail i caught in the river and its doing something new in my eyes, i saw it twice this day walking in the surface of the water upsidedown, i can totally see its slimmy feet because the snail was upsidedown walking in the surface. What can you say?

I was digging in our yard for the past three days now, im using a shovel and a long heavy metal for digging the rockysoil. Now my hands hve a spot where the skin is not attached to the flesh, in filipino, they call it paltos, i want to ask how to make it ok, how to mend it?

Its so painfull, i cant washmy hands in a warm water.

One day, my cat was running like hell, then it lies under a tree, i didnt disturb him, so on the other day, i looked at the window, i see her still sleeping, when i get a closer look, its not moving, and some flies are coming around him. I dont know what to the.