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Class 10 Maths Chapter 8 Introduction To Trigonometry Quiz 3 (25 MCQs)

Quiz Instructions

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1. Cos (90 $^\circ$-a) = .....
2. Say 'TRUE' or 'FALSE'If A and B are acute angles such that Sin A = Sin B, then A = B
3. Factor and Simplify:$\tan^4\left(x\right)+2\tan^2\left(x\right)+1$
4. Trigonometry is a branch of mathematics that studies relationships involving lengths and angles of ..... triangles
5. What is tan 45$^\circ$?
6. Write this angle as a decimal:25$^\circ$ 16' 10"
7. In a right angle triangle ABC right angled at B, what will be the sum of angle A and angle B
8. Write this angle as a decimal:209$^\circ$ 10' 20"
9. Find a coterminal angle to 5$^\circ$.
10. What is the side of the right triangle that is opposite to the right angle called?
11. Which of the following is false
12. What is the value of cos1$^{0}$cos2$^{0}$cos3$^{0}$ ..... cos90$^{0}$?
13. What is trigonometry?
14. Sin (90$^\circ$-A) and cos A are
15. In what kind of triangle can you use SOH-CAH-TOA?
16. Which of the following angles are co-terminal to-75$^{o}$?
17. 2 Tan 30 $^\circ$/(1 + Tan $^{2} $ 30 $^\circ$) =
18. What is the value of third angle in a right angle triangle if second angle is of measure of $45^0$
19. Which set of sides would make a right triangle?
20. If you are given 2 of the sides to an obtuse triangle, which trigonometric function should you use to find the other side?
21. $Is\\sin\left(A+B\right)=SinA+\sin B?$
22. If $\tan\theta=\frac{-1}{\sqrt[]{2}}$ $\theta$ $\sec\theta.$
23. Do we ever solve a problem using the right angle?
24. If tanA =4/3, then cotA= .....
25. Is-90$^\circ$ a quadrantal angle?
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