Question

PLEASE HELP I DONT UNDERSTAND
Solve equation

1. sin^2 theta+cos theta=2 (Hint: Use the Pythagorean identity sin^2 theta + cos^2 theta =1 to replace sin^2 theta in the given equation.)


PLEASE HELP I DONT UNDERSTAND

Answer 1

use to the hint

Answer 2

I dont no how

Answer 3

sin^2(theta)=1-cos^2(theta)

Answer 4

you got it?

Answer 5

hollar if you need some more help

Answer 6

There is no real valued answer.

Plot \[sin^2(x)+cos(x)\] and you will get the idea that it never equals 2.

Answer 7

Are they looking for a complex number?

Answer 8

im not sure .. :(

Answer 9

http://www4a.wolframalpha.com/Calculate/MSP/MSP29331a143af61gh4h0b10000307c7e3317g2d9hh?MSPStoreType=image/gif&s=5&w=362&h=1059

Answer 10

thank you @Recursing