Question

Cos theeta + sec theeta=-3 then value of cos square theeta +sec square theeta is

Answer 1

Answer:

7

Explanation:

cos theta + sec theta = -3

square both sides,

(cos theta + sec theta)^2=9

cos square theta + sec square theta + 2cos theta sec theta=9

cos theta x sec theta = 1

cos square theta + sec square theta = 9-2

                                                             =7