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Cos(45°+135°)=cos 45°•cos 135°-sin45°• sin 135° is this right yes or no?

Sin 225°= sin 90° cos 135°+ cos 90° sin 135° is this right yes or no?

i plan on using

phenom II x4 965 quad core processor

HIS Radeon HD 7850 1GB 256-bit

4 gb of ddr3 ram

500 watt power supply

ASUS M5A78L-M LX PLUS AM3+ AMD 760G Micro ATX AMD Motherboard

and i plan on playing arma 2, borderlands 2 , call of duty games and other fps

will this setup be good

i wasnted to make a bird cage for love birds im going to get and i was wondering whats safew for them i also wanted to know roughly how much would if cost for a 4ft long 3ft tall and 2 1/2ft wide cage would cost to build it

thank you

can i use shredded newspaper or paper towels as bedding for them

i got 3 green tree frogs like 2 weeks ago they were doing fine till like a couple days ago i notice on one of there faces there is like this pale pinkish patch of skin what is it they been eating fine and acting normal im just wondering what it is and how to get rid of it i think it might be so fungus infection because i found little tiny bit s of fungus growing on there branches i immediately remove it and cleaned there tank please help i really love my frogs

anyone have a good gut loading food fro crickets recipe? 10 points for best answer

how many green tree frog do u think i can put in a 20 gallon tank

do u think its safe to get some bamboo from out side and cut it and put it in boiling water to kill bugs in it if any then put it in a treefrog's tank

is it safe to feed them a wax moth ?

im planing on getting 2 tokay geckos i wanted to know whats a good tank size

my zebra finches egg just hatched and i want to know if i have to feed him and what should i feed him plzz help

what are your most successful large mouth and small mouth lure

what is the best flounder bait you have used?

about how many chins will i have to use to get from 81 range to 90 range at mummies?

how much money is it to get 75 to 99 range with red chins at mummy's ?

do you think a 30 gallon tank is good for 2 red tiger oscar and two albino tiger oscars and what is the price for it if not big enough what is a good size and what is the price for it

how much is a 10 gallon tank heater and will cichlids eat mealworms

or those the buyer please help

as pets not pest

im thinking of getting a mouse i was woundering whats all the things i need to take care of them and how much mice should i put in a 20 gallon tank and an esimate on the price