3 years ago

cos2x=____. Check all that apply. A. 1-2sin^2 x. B. 2sin^2 x-1. C. sin^2 x-cos^2 x. D. cos^2 x-sin^2 x

2 answers:

7 0

cos 2 x = cos² x - sin² x = 1 - sin² x - sin² x = 1 - 2 sin² x.
Answer: A ) 1 - sin² x and D ) cos² x - sin² x
Thank you.

Gnom [1K]3 years ago

3 0

Answer:

A & D

1-2sin^2x

cos^2x-sin^2x

Step-by-step explanation:

You might be interested in

Angles in triangles <br><br> Question is in the photo

AnnZ [28]

Answer:

JSJXJX

Step-by-step explanation:

CF<DC<DE<DF<FE

7 0

3 years ago

A spinner has 4 equal-sized sections labeled A, B, C, and D. It is spun and a fair coin is tossed. What is the probability of sp

allsm [11]

Probability of spinning a C =1/4
Probability of flipping heads = 1/2
1/4*1/2 = 1/8

8 0

2 years ago

Which plant is nonvascular? <br> I didn't see an option for science so I chose math :^

vladimir1956 [14]

Answer:

These are the nonvascular plants or bryophytes (mosses, liverworts, and hornworts), the seedless vascular plants (clubmosses and ferns including, horsetails, club mosses, and whisk ferns), gymnosperms (conifers, cycads, Ginkgo, and gnetophytes), and angiosperms, or flowering plants.

4 0

2 years ago

Write all the factors of 21<br> Use commas to separate them.

Hatshy [7]

Answer:

1, 3, 7, 21

Step-by-step explanation:

1, 3, 7, 21

(The bolded is one factor and the other that is not bolded is another factor)

1 times 21 is 21

3 times 7 is 21

7 0

3 years ago

I don’t really understand this

PtichkaEL [24]

Answer:

you put the -3 where the x's are

Step-by-step explanation:

f(x)= -2(-3)^2 - 3(-3) + 6

i think i hope thats right

3 0

3 years ago

Read 2 more answers