NCERT Mathematics Class 10 Exemplar Ch 8 Introduction to Trigonometry and Its Applications Part 1
Glide to success with Doorsteptutor material for CBSE/Class-10 : get questions, notes, tests, video lectures and more- for all subjects of CBSE/Class-10.
EXERCISE 8.1
1. If cos , then the value of tan A is
(A) (B) (C) (D)
Answer: B
2. If sin , then the value of cot A is
(A) (B) (C) (D)
Answer: A
3. The value of the expression [] is
(A) – 1 (B) 0 (C) 1 (D)
Answer: B
4. Given that sin , then cos θ is equal to
(A) (B) (C) (D)
Answer: C
5. If , then can be reduced to
(A) (B) (C) (D)
Answer: B
6. The value of is
(A) 0 (B) 1 (C) 2 (D)
Answer: B
7. If d then the value of tan5α is
(A) (B) (C) 1 (D) 0
Answer: C
8. If ΔABC is right angled at C, then the value of is
(A) 0 (B) 1 (C) (D)
Answer: A
9. If hen the value of the expression
(A) 1 (B) (C) 2 (D) 3
Answer: A
10. Given that d then the value of is
(A) (B) (C) (D)
Answer: D
11. The value of the expression is
(A) 3 (B) 2 (C) 1 (D) 0
Answer: B
12. If , then ( is equal to
(A) (B) (C) (D)
Answer: C
13. If , then the value of is
(A) 1 (B) (C) (D)
Answer: C
14. is equal to
(A) (B) 0 (C) (D) 1
Answer: B
15. A pole 6 m high casts a shadow long on the ground, then the Sun՚s elevation is
(A) (B) (C) (D)
Answer: A