Answer:
Step-by-step explanation:
1, sec theta * sin theta = 1/cos * sin = sin/cos =tan theta
2. cosec theta * cos theta = 1/ sin * cos = cos/sin = cot theta
3, tan theta * cosec theta =sin/cos * 1/sin = 1/cos
4, cot theta * sec theta = cos /sin * 1/cos= 1/sin
5, 1 - cos^2 theta = sin ^2 theta
6, sec^2 theta - 1 =tan ^2 theta
7 , cosec^2 theta - cot^2 theta = 1
8, 1 - sin^2 theta = cos^2
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