Question

If cosΦ = 5/13

what is, sin Φ/sin Φ + cos Φ
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Answer 1

sin Φ/(sin Φ + cos Φ) = 12/17

Explanation:

sin Φ = 12/13

then sin Φ + cos Φ = 12/13 + 5/13

= 17/13

So , sin Φ/(sin Φ + cos Φ) = 12/13 ÷ 17/13

= 12/13 × 13/17

= 12/17