Question

Expressall trigonometric ratio in the form of cosa​

Answer 1

Answer:

Answer: All trigonometric ratios in terms of cosA

Answer 2

Answer:

• cosec2A−cot2A=1. ⇒cosec2A=1+cot2A. ⇒(cosecA)2=cot2A+1. ⇒(sinA1)2=cot2+1. ⇒(sinA)2=cot2A+11. ⇒sinA=±cot2A+1 1. We reject the negative value of sinA for acute angle A. Therefore sinA=cot2A+1 1.
• tanA=cotA1.
• We have sec2A−tan2A=1.

Step-by-step explanation:

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