Question

Solve sin^2 theta + cos theta = 2.

Answer 1

sin^2 theta = 1 - cos^2 theta

use this to substitute sin^2 theta in your equation, and you 'll have a quadratic in 'sin theta'. Let sin theta be 't' (for the same of simplicity).

solve the quadratic, get the values of sin theta, and then find the arcsin.

Answer 2

Okkie dokkie!

Answer 3

W-okay!!! :P Get your answer verified here!

Answer 4

Well on my paper it said use the pythagorean identity sin^2 theta + cos^2 theta =1 to replace sin^2 theta.

Answer 5

that's what I just said!

sin^2 theta + cos^2 theta =1
or, sin^2 theta = 1 - cos^2 theta.

same thing. use this.

Answer 6

Well sorry! Don't yell. ;~; Okay!