CBSE Class 10-Mathematics: Chapter –8 Introduction to Trigonometry Part 12
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4 Mark Questions
Question 1:
Express the trigonometric ratios and in terms of .
Answer:
For
By using identity
For
By using identity
For
Question2:
Write the other trigonometric ratios of A in terms of .
Answer:
For
By using identity,
For
For
By using identify
For
For
Question3:
Evaluate:
(i)
(ii)
Answer
(i)
(ii)