Math, asked by nisha5692, 11 months ago

if Cos A equal to 3 by 5 find 9 cot square A minus one ​

Answers

Answered by mistyYadav
1

Step-by-step explanation:

hola mate here is ur answer

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Answered by apoorvtandon2005
1

Step-by-step explanation:

cos a=3/5

adjacent side=3k

hypotenuse=5k

hence opposite side=4k

cot a =3/4

cot^2

a= 9/16

9cot^2 a=81/16

9cot^2 a -1 = 81/16-1

=65/16

=4.0625

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