If sin (Ф) = 3/5, and cos (Ф) = -4/5, which of the following is true?

a.) sin ((π/2) - Ф) = 4/5

b.) cos ((π/2) - Ф) = -3/5

Question

Burnett

1 July, 03:34

+3

Answers (1)

Know the Answer?

Isabelle Campbell · Answer 1

Step-by-step explanation:

b.) cos ((π/2) - Ф) = -3/5 is true because:

cos ((π/2) - Ф) = sin (Ф)

If sin (Ф) = 3/5, and cos (Ф) = -4/5, which of the following is true?a.) sin ((π/2) - Ф) = 4/5b.) cos ((π/2) - Ф) = -3/5