Ask a New Question

Asked by ankita

prove that sin(n+1)A-sin(n-1)A/cos(n+1)A+2cos(nA)+cos(n-1)A=tanA/2
13 years ago

Answers

There are no AI answers yet. The ability to request AI answers is coming soon!
There are no human answers yet. A form for humans to post answers is coming very soon!

Related Questions

hi: could anyone prove that the number of subgroups of order p of a group G is the same as the nu... If y = x sin(a+y), prove that dy/dx = sin^2(a+y)/sin(a+y)-ycos(a+y) Please solve it PROVE THAT (1+COT A+TAN A)(SIN A-COS A)=SEC A\COSEC A-COSEC A\SEC A . Prove that -x - y = -y – x; for all integers x and y. prove that (x+y)^3-(x-y)^3-6y(x^2-y^2)=8y^3 Prove each of the following identities. a)tan^2x = 1 – cos^2x/cos^2x b)sinx/1 – sin^2x = tanx/cosx... if x=1/(2-3^1/2) prove that x^3-2x^2-7x+5=3 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y 10.Prove that 1+tanθ/1-tanθ = sec^2θ+... (1) Prove: If AB = 5x, BC = 2x –4, and AC = 52, then x = 8. (2) Prove: If AB = CD, then AC = BD. Prove that given any set of $17$ integers, there exist nine of them whose sum is divisible by $2.$
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use