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Adityaekbalbharti

· started a discussion

· 1 Months ago

you are going to very long process .aply sort trick.

Question:

If  cos x =2cos y -12- cos y   , then find the value of  tanx2coty2    .

Options:
A)

3    

B)

3

C)

2

D)

-3    

Solution:

Ans: (a) 

  

  

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