Question

2. 1-cos² O is
3. (sec 0 + tan ) (sec 0 - tan/) is
(tan 45º + cot 45°) + (sec 45° cosec459) is
8. (i) sec 0 = coseco if O is
(ii) cot 0 = tan 0 if O is
1. The number of trigonometric ratios is​

Answer 1

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2. Ans : sin²0

3. Ans : (sec 0 + tan ) (sec 0 - tan0)

= sec²0 -tan²0

= 1

8. (i) Ans : sec 0 = cosec 0 ,

so, 0 =45⁰

(ii)Ans: cot 0 = tan 0 ,

so, 0 = 45⁰