Question

If 5 sin a = 3, the find the value of sec a​

Answer 1

sin a = 3/5

sec a = 5/4

( Use Pythagoras theorem)

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Answer 2

Answer _

Step-by-step explanation:

Let

⎧

⎪

⎨

⎪

⎩

A

...

Adjacent

H

...

Hypotenuse

O

...

Opposite

Given:

sin

A

=

3

5

=

O

H

⇒

Let

{

O

=

3

H

=

5

By Pythagorean Theorem,

A

=

√

H

2

−

O

2

=

√

5

2

−

3

2

=

√

16

=

4

Hence,

sec

A

=

H

A

=

5

4