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Trigonometric Ratios CBSE NCERT Solutions Chapter 8 Exercise 8.3 Question 7
7. Express sin 67
+ cos 75
in terms of trigonometric ratios of angles between 0
and 45
.
Trigonometric Ratios CBSE NCERT Solutions Chapter 8 Exercise 8.3 Question 6
6. If A, B and C are interior angles of a triangle ABC, then show that
Trigonometric Ratios CBSE NCERT Solutions Chapter 8 Exercise 8.3 Question 5
5. If sec 4A = cosec(A-20
), where 4A is an acute angle, find the value of A.
Trigonometric Ratios CBSE NCERT Solutions Chapter 8 Exercise 8.3 Question 4
4. If tan A = cot B, prove that A+B = 90