Question

Help.

Answer 1

Having a question would help me help you.

Answer 2

\[\sin^2 20 + \cos^2 20\]

Answer 3

Lol sorry i was typing it ;D

Answer 4

Look up the Pythagorean theorem

Answer 5

Find the exact value of each expression.

Answer 6

Come on someone... What is Sin^2 + Cos^2 ?

Answer 7

i know it is 1

Answer 8

Okay, so what is Sin^2(20)+Cos^2(20)?

Answer 9

but i'm confused now :/

Answer 10

\[\sin ^2 x + \cos^{1} x = 1\]
So here, since the angle (20) is the same, it is 1.

Answer 11

\[\sin^2x+\cos^2x=1\]

Answer 12

And we don't care what x is

Answer 13

\(\sin^2 \theta + \cos^2 \theta = 1\) for any value of \(\theta\) so it is 1.

Answer 14

yeah i know it is one, so we just use that identity @Mertsj ?

Answer 15

Yeah

Answer 16

Yes

Answer 17

Yep

Answer 18

oh okaii, i was confused :) thnx :D

Answer 19

Okay.. let's explain this in a better way.



Sin^2(le bear) + Cos^2(le bear) = 1