1.

Secθ−tanθ=3 then find cosθ

Answer» ONG>ANSWER:

sectheta-tantheta=3.....1

sectheta+tantheta=1/3.....2

1+2

2sectheta=3+1/3

2sectheta=10/3

sectheta=10/6

costheta=6/10=3/5



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