Question

If cos (2m)=.11 what is (cos m)^2

Answer 1

Use the cosine half-angle identity:\[\cos ^{2}m = \frac{ 1 + \cos 2m }{ 2 }\]

Answer 2

2.22 is that correct

Answer 3

I'm not sure how you got that. It's not correct, but if you show me your work, step by step, I'm sure I can see where you went wrong.

Answer 4

1.11

Answer 5

I was trying to add wrong number

Answer 6

1+2(.11)/2 =

Answer 7

Okay, I see where you went wrong. cos 2m is equal to .11 , not cos m = .11\[\frac{ 1 + .11 }{ 2 }\]

Answer 8

Also,\[\cos ^{2}m = (\cos m)^{2}\]

Answer 9

So, it comes down to 0.555 for (cos m)^2

Answer 10

.11/2

Answer 11

No, 1.11/2

Answer 12

sorry thank you so much

Answer 13

np. You did well.

Answer 14

your really smart
I guess you already know that Huh

Answer 15

My dog is about the only one who thinks I'm smart, and that's only because I know where the food is. I secretly think he knows where the food is, too! :-)

Answer 16

Lol should put up a picture of sheldon from big bang theory

Answer 17

Sheldon rocks! Kaboom! (elevator episode)

Answer 18

So do you lifesaver ;D

Answer 19

Have a good one!