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The value of $3 \cos 30^\circ - 4 \cos^3 30^\circ$ is same as the value of :
- (a)$\sin 90^\circ$
- (b)$\cos 90^\circ$
- (c)$\tan 90^\circ$
- (d)$\sec 90^\circ$
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$\cos 90^\circ$
The value of 3 30° - 4 3 30° is same as the value of :
CBSE Class 10 Maths PYQ · Trigonometry · Specific Angles Expression · 1 Mark · March 2026 · Basic
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