if sin α + sin β = a and cos α + cos β = b , then the value of cos ( α + β ) is

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Prashant · Answer

sin

Prashant · Answer

what u have to do is name these equ as 1 and 2 now make squares of the equ and subtract themthen by simplying the obtained equ

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if sin α + sin β = a and cos α + cos β = b , then the value of cos ( α + β ) is

if sinα+sinβ=a and cosα+cosβ=b, then the value of cos(α+β) is

if sinα+sinβ=a and cosα+cosβ=b, then the value of cos(α+β) is

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if sin α + sin β = a and cos α + cos β = b , then the value of cos ( α + β ) is

if sinα+sinβ=a and cosα+cosβ=b, then the value of cos(α+β) is

if sinα+sinβ=a and cosα+cosβ=b, then the value of cos(α+β) is

2 Answers

Think You Can Provide A Better Answer ?

Other Related Questions on Trigonometry

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship