Class 11 Mathematics Trigonometric Functions Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

Easy

$1+\cot ^2 30^{\circ}-\sec ^2 45^{\circ}=$

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A
$1$
B
$2$
C
$0$
D
$-1$

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Class 11 Questions

Class 11

Mathematics Questions

Chapter

Trigonometric Functions

Subtopic

Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

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यदि $A$ और $B$ दो ऐसे कोण हैं कि $A, B \in (0, \pi)$ और वे संपूरक कोण नहीं हैं,तथा $\sin A - \sin B = 0$ है,तो

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यदि $\cos(\alpha + \beta) = 0$ है,तो $\sin(\alpha + 2\beta) =$

Medium

निम्नलिखित में से कौन सा सही नहीं है?

alpha अक्षर को दर्शाने वाले प्रतीक की पहचान करें: $ \alpha $

Easy

$\frac{\cos 10^{\circ} + \cos 80^{\circ}}{\sin 80^{\circ} - \sin 10^{\circ}} = ?$

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