Question
Download Solution PDFComprehension
Consider the following for the three (03) items that follow: Let p=sin35∘, q=sin25∘ and r=sin(−95∘).
What is (pq+qr+rp) equal to?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
Given,
The expression to simplify is pq + qr + rp, where:
Thus, we need to evaluate:
Using trigonometric identities, we simplify the expression:
Using the sum-to-product identity and known values for sine and cosine:
∴ The value of pq + qr + rp is
Hence, the correct answer is Option 1.
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