Answer:
90
Step-by-step explanation:
:D
(ab)^4 means ab times itselv 4 times
multicplication is comutaive so
a^4b^4
2nd option is answer
The change from one number to the next in a geometric sequence is called the common ratio
Answer:

Step-by-step explanation:
we know that
In this problem, if angle A and angle B are complementary, then triangle ABC is a right triangle
If two angles are complementary, then their sum is equal to 90 degrees and the cofunction identities state that the sine of one equals the cosine of the other and vice versa
so
sin(A)=cos(B)
cos(A)=sin(B)
we have

therefore

Find the measure of angle B
