The values of k for which the equation sinx+cos (k+x)+cos (k-x)=2 has real solution.....

Question

Arun · Answer

Dear Vishal sin x + 2 cos k * cos x = 2 Now multiply and divide it by sqrt(1 + 4 cos&sup2;k) And then make it a function of sin or cos. Then it will be very easy. If you even find it difficult, please feel free to ask.

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

The values of k for which the equation sinx+cos (k+x)+cos (k-x)=2 has real solution.....

The values of k for which the equation sinx+cos (k+x)+cos (k-x)=2 has real solution.....

1 Answers

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Trigonometry

ASK QUESTION

Answer and earn gift vouchers

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