Question
Download Solution PDFΔXYZ में, Y पर समकोण है, यदि sin X = \(\frac{1}{2}\), cos X cos Z + sin X sin Z का मान ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFप्रयुक्त सूत्र:
cos X cos Z + sin X sin Z = (cos Z - X)
गणना:
sin X = \(\frac{1}{2}\) = 30°
X = 30°, y = 90°
z = 60°
(cos Z - X) = cos 60° - 30°
cos 30° = \(\frac{\sqrt3}{2}\)
∴ सही विकल्प 1 है।
Last updated on Jul 22, 2025
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