Question

If sin(60+a)=1 then the value of cosec A is?

Answer 1

Answer:

from the given question we can find A = 30

so cosec A = cosec 30 = 2

so answer to the question is 2

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Answer 2

The value of cosec A = 2.

Step-by-step explanation:

We have,

$\sin(60+A)$ = 1

To find, the value of cosec A = ?

∴  $\sin(60+A)$ = 1

⇒  $\sin(60+A)=\sin 90$

We know that,

$\sin 90$  = 1

∴ 60° + A = 90°

⇒ A = 90° - 60° = 30°

∴ The value of ∠A = 30°

∴ cosec A = cosec 30° [ ∵ cosec 30° = 2]

= 2

Thus, the value of cosec A = 2.