Math, asked by fantasticpoonam8841, 11 months ago

If sina=1/3 then find the value of 9cot2a+9

Answers

Answered by Uniquedosti00017

5

Answer:

sinA = ⅓

=> cose A = 3

=> cosec²A = 9

now,

9cot²A + 9

= 9( cot²A + 1)

= 9 * cosec² A

= 9 * 9

= 81

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