Question

Please tell me the answer if you can....



Its a humble request ​

Answer 1

what chapter is this? can u plz say the name of the chapter

Answer 2

Step-by-step explanation:

we know sin^2x+cos^2x is 1

so 1-sin^2x is cos^2x

so here cos^2A and cos^2 A will cancel out

so tanTheta=1

so theta=45