Question
Download Solution PDF\(\rm \frac{\cos 17^\circ-\sin 17^\circ}{\cos 17^\circ+\sin 17^\circ}\) किसके बराबर है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFव्याख्या:
⇒ \(\frac{cos17°- sin17°}{cos17°+ sin17°} = \frac{cos17°(1-\frac{sin 17°}{Cos17°})}{cos17°(1+\frac{sin 17°}{Cos17°})}\)
= \(\frac{1-\tan17°}{1+\tan17°}\)
= \(\frac{\tan45°-\tan17°}{1+\tan45°\tan17°}\) = tan(45° - 17°) = tan 28° = cot 62°
∴ सही उत्तर विकल्प 4 है।
Last updated on May 30, 2025
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