Q24 of 118 Page 5

Mark the correct alternative in the following:
If , the

tan²x + 1 = sec²x

sin²x+cos²x= 1

∴ cos²x= 1 - sin²x

Substituting in f(x) we get

1 - sin²x+ tan²x + 1

Minimum value of is 0.

∴ f(x)≥ 2.

Mark the correct alternative in the following:

If tan θ + sec θ = e^x, then cos θ equals

Mark the correct alternative in the following:

If sec x + tan x = k, cos x =

Mark the correct alternative in the following:

Which of the following is incorrect?

Mark the correct alternative in the following:

The value of cos 1° cos 2° cos 3° ... cos 179° is

Mark the correct alternative in the following:If , the