2 years ago

Write sin81 in terms of cosine

1 answer:

7 0

Answer:

Since 81° is less than 90, we can express this in terms of a cofunction. sin(θ) = cos(90 - θ) sin(81) = cos(90 - 81) sin(81) = cos(9)

Step-by-step explanation:

You might be interested in

What is the scientific notation of 0.000000045?

morpeh [17]

The answer is 4.5 × 10 -8

4 0

3 years ago

Read 2 more answers

Describe the error in factoring the polynomial.

Veseljchak [2.6K]

Answer:

B:Multiplication of the outer terms of the two factors does not result in -7x

Step-by-step explanation:

8 0

3 years ago

How to factorise<br><br><img src="https://tex.z-dn.net/?f=%20%7B8x%7D%5E%7B2%7D%20%20-%20%20xy%20-%20%7B7y%7D%5E%7B2%7D%20" id="

kenny6666 [7]

(8x+7y)(x-y) is the answer.

4 0

3 years ago

The diagram shows a right-angled triangle.

Marizza181 [45]

Answer:

11.9 Cm.

Have a nice day!

Step-by-step explanation:

cos = adj/hyp

cos 24°= hcm/ 13cm

13 cos 24°= h

11.88= h

11.9 cm

7 0

1 year ago

Pls can u help me this is due now T-T

Artist 52 [7]

Answer:

SOLUTION: X=5

Step-by-step explanation:

x=5

y=27

vertical input= (0, 1/9)

Hope that helps!

5 0

3 years ago