Determine cos(F) and cos(E).


Group of answer choices

cosine F equals 40 over 41 comma cosine E equals 9 over 41

cosine F equals 9 over 40 comma cosine E equals 40 over 9

cosine F equals 40 over 9 comma cosine E equals 9 over 40

cosine F equals 9 over 41 comma cosine E equals 40 over 41

Respuesta :

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Answer:

We want to prove that the sine of an angle equals the cosine of its complement.

\sin(\theta) = \cos(90^\circ-\theta)sin(θ)=cos(90

−θ)sine, left parenthesis, theta, right parenthesis, equals, cosine, left parenthesis, 90, degrees, minus, theta, right parenthesis

[I'm skeptical. Please show me an example.]

Let's start with a right triangle. Notice how the acute angles are complementary, sum to 90^\circ

degrees.

Step-by-step explanation: cosine F equals 40 over 9 comma cosine E equals 9 over 40

Answer:

cosine F equals 40 over 9 comma cosine E equals 9 over 40

Step-by-step explanation: