Question

if tan9A =cotA and 9A<90 then find the value of 5cosecA

Answer 1

Solution :

tan 9A = cotA

=> tan 9A = tan ( 90 - A )

=> 9A = 90 - A

=> 10A = 90

=> A = 90/10

=> A = 9

Now ,

Value of 5 cosecA

= 5 cosec 9

••••

Answer 2

Hey there!

Answer:

5 cosec 9

Step-by-step explanation:

Given,

Tan 9A = cot A

Tan 9A = tan (90 - A)

removing tan on both sides,

9A = 90 - A

10 A = 90

A = 90/10

A = 9

Now,

5 cosec A

= 5 cosec 9

Hope It helps You!