Thursday
October 30, 2014

Homework Help: maths-

Posted by anoynomous on Tuesday, April 9, 2013 at 11:46am.

A and B are two different values of C lying between 0 and 360 which satisfy the equation (p cosC + q sinC=r) then prove that cos(A+B)=(p^2- q^2)/(p^2+ q^2)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Maths - 1) Simplification (trigonometric ratios of allied angles)? Simplify : i...
MathS triG - 1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),calculate ...
maths Pls help trig - 1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),...
trig - find to the nearesr degree, all values of x between 0 degrees and 360 ...
maths - Choose three options which are true: a) an angle of 150 degrees is ...
Trigonometry desperate help, clueless girl here - 2. solve cos 2x-3sin x cos 2x...
math - how to define arc cosine(cosine x) for -360 deg<x< 360 deg?? a ...
trig - If A+B+C=^(^=180) prove that sinA + sinB - sinC = 4sinA/2 sinB/2 cosC/2
math - Find the exact value of cos 300 degrees. thanks guys cos 300 = 1/2 = 0....
Trigonometry - Prove that cos(A+B)cosC - cos(B+C)cosA = sinBsin(C-A)

Search
Members