Select all the correct answers. If the measure of angle is 0 is 7pi/ 4, which statements are true? The measure of the reference angle is 45°
cos) 0)= -√2/2
tan(0)=-1
The measure of the reference angle is 30°.
sin(0) =-√2/2
The measure of the reference angle is 60°.​

step-by-step explanation:

first you will have to convert 3/4 into a decimal

which is .75

then you will have to divide 1.5 by .75

which is 2

no you have to divide

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it