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Prove that : tan(20ْ ) . tan(30ْ ) . tan(40ْ ) = tan(10ْ ) Using trignometric laws?
Don't use calculator
2 AnswersMathematics1 decade agoSolve the equation : log2(x)+log3(x+1) = 2?
log2 means logarithm to base 2
log3 means logarithm to base 3
7 AnswersMathematics2 decades ago