Trigonometric Ratios Complementary Angles CBSE NCERT Solutions Chapter 8 Exercise 8.4 Question 4
4. Choose the correct option. Justify your choice.
(i)
(A) 1 (B) 9 (C) 8 (D) 0
Solution:
Note:
Therefore, the answer is (B)
(ii)
(A) 0 (B) 1 (C) 2 (D) -1
Solution:
Therefore, answer is (C)
(iii)
(A)
(B) sin A (C)
(D)
Solution:
Therefore, answer is (D)
(iv)
(A)
(B) -1 (C)
(D)
Solution:
Therefore, answer is (D).
Leave a Reply