Question

13
Given cos A = 5
evaluate(i) sin A - CotA÷2tanA
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Answer 1

Answer:

Step-by-step explanation:

cos A = 5/13  

Using sin2 A = 1 - cos2 A

we get sin A = 12/13

tan A = sin A/cos A = 12/5 and cot A = 1/tan A = 5/12

Answer 2

Answer:

CosA can't be 5 bcoz it can't be greater than 1.

Step-by-step explanation: