Classes

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Class 9Class 10First YearSecond Year

Math

01Number Systems

672 Doubt Solutions

02Sets, Functions & Groups

1344 Doubt Solutions

03Matrices and Determinants

2016 Doubt Solutions

04Quadratic Equations

2688 Doubt Solutions

05Partial Fractions

3360 Doubt Solutions

06Sequences and Series

4032 Doubt Solutions

07Permutation, Combination and Probability

4704 Doubt Solutions

08Mathematical Induction and Binomial Theorem

5376 Doubt Solutions

09Fundamentals of Trigonometry

6048 Doubt Solutions

10Trigonometric Identities

6720 Doubt Solutions

11Trigonometric Functions And Their Graphs

7392 Doubt Solutions

12Application of Trigonometry

8064 Doubt Solutions

13Inverse Trigonometric Functions

8736 Doubt Solutions

14Solutions Of Trigonometric Equations

9408 Doubt Solutions

Physics

Chemistry

Q.21 \operatorname{Tan}^{-1} \frac{1}{2}+\operatorname{Tan}^{-1} \frac{1}{3}= (a) \frac{\pi}{6} (b) \frac{\pi}{4} (c) \frac{\pi}{2} (d) \pi Gujrantwala Board; 2008

$Q.21 \operatorname{Tan}^{-1} \frac{1}{2}+\operatorname{Tan}^{-1} \frac{1}{3}= (a) \frac{\pi}{6} (b) \frac{\pi}{4} (c) \frac{\pi}{2} (d) \pi Gujrantwala Board; 2008$

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$Q.21 \operatorname{Tan}^{-1} \frac{1}{2}+\operatorname{Tan}^{-1} \frac{1}{3}= (a) \frac{\pi}{6} (b) \frac{\pi}{4} (c) \frac{\pi}{2} (d) \pi Gujrantwala Board; 2008$

$16. \tan 28 \cot \theta=3$

$11. \operatorname{Tan}^{-1} \frac{1}{13}+\operatorname{Tan}^{-1} \frac{1}{4}=\operatorname{Tan}^{-1} \frac{1}{3}$

$8. Find \sin \left(\sin ^{-1} \frac{3}{5}+\sin ^{-1} \frac{4}{5}\right) Prove that$

$\[\sin \left(\cos ^{-1} \theta+\sin ^{-1} \theta\right)=\text { ? }\]A. 4B. 3C. 2D. 1$

$Example 3. Solve 2 \sin ^{2} \theta+2 \sqrt{2} \sin \theta-3=0 .$

First Year Math Inverse Trigonometric Functions