A P Singh Solutions for Chapter: Introduction to Trigonometry, Exercise 4: MCQs (MULTIPLE CHOICE QUESTIONS)

If $\mathrm{cosec}\theta =\frac{3}{2}$, then $2({\mathrm{cosec}}^2\theta +{\cot }^2\theta )$ is:

The value of $\tan 1°.\tan 2°.\tan 3°..\dots \tan 89°$ is:

$∆ABC$ is right-angled at $A$, the value of $\tan B\times \tan C$ is:

If $\sin \theta -\mathrm{cosec}\theta =\sqrt{5}$, then the value of $\sin \theta +\mathrm{cosec}\theta$ is:

The value of $5{\tan }^2\theta -5{\sec }^2\theta$ is:

If $x=3{\sec }^2\theta -1, y={\tan }^2\theta -2$, then $x-3y$ is equal to

Given that $\sin A=\frac{1}{2}$ and $\cos B=\frac{1}{\sqrt{2}}$, then the value of $A+B$ is:

In the given figure, $\angle ACB=90°, \angle BDC=90°, CD=4 \mathrm{cm}, BD=3 \mathrm{cm}, AC=12 \mathrm{cm}$, then $\cos A-\sin A$ is equal to