Class 10 Mathematics Introduction to Trigonometry Mix Examples - Introduction to Trigonometry

Easy

If $\sin ^{2} 35^{\circ} + \cos ^{2} \theta = 1$,then $\theta = \ldots \ldots \ldots \ldots$ (in $^{\circ}$)

A
$35$
B
$55$
C
$70$
D
$20$

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Class 10 Questions

Class 10

Mathematics Questions

Chapter

Introduction to Trigonometry

Subtopic

Mix Examples - Introduction to Trigonometry

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$\tan ^{2} \theta - \sec ^{2} \theta = \ldots \ldots \ldots$

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$(\sin 80^{\circ} + \cos 10^{\circ})(\sin 80^{\circ} - \cos 10^{\circ}) = \ldots \ldots \ldots$

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$\cot \theta \cdot \tan \theta = \dots$

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If $\sin \theta + \cos \theta = \sqrt{3}$,then prove that $\tan \theta + \cot \theta = 1$.

Medium

$\operatorname{cosec} 40^{\circ} = \ldots \ldots \ldots \ldots$

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