find cos theta if csc theta = square root 5

Question

find cos theta if csc theta = square root 5

in progress 0
Rose 1 hour 2021-09-15T12:09:03+00:00 1 Answer 0

Answers ( )

    0
    2021-09-15T12:11:00+00:00

    Answer:

    cos theta = adjacent/hypotenuse = \frac{2}{\sqrt{5} }

    Step-by-step explanation:

    csc theta = hypotenuse/opposite = \sqrt{5} /1 (reciprocal identity)

    1^2 + b^2 = \sqrt{5}^2 (pythagorean theorem)

    b^2 = 5-1

    b = 2

    cos theta = adjacent/hypotenuse = 2/\sqrt{5} (quotient identity)

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )