Question
Download Solution PDFsin 75° का मान ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना:
sin (x + y) = sin x cos y + cos x sin y
sin (x - y) = sin x cos y - cos x sin y
गणना:
sin 75°
= sin (45° + 30°)
= sin 45° cos 30° + cos 45° sin 30°
= \(\rm \frac{1}{\sqrt 2} \times \frac{\sqrt 3}{2} + \frac{1}{\sqrt 2} \times \frac{1}{2}\)
= \(\frac{\sqrt 3 +1 }{2\sqrt2}\)
Last updated on Jun 11, 2025
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