Question

if sin A = 1/3
the value of sin 3A is
a. 1/2
b. 6/47
c. 23/27
d. 8/3​

Answer 1

Step-by-step explanation:

If sinA=1/2, then what is sin3A?

So, let’s solve the problem.

condition is given if:

Sin(A)=1/2

A=arc sin (1/2)

A=30 degree or pi/6 radian

so we find the value of A by the given condition now insert this in the next:

Sin(3A)=?

=Sin{3(pi/6)}

=Sin(pi/2)

=1

Hence Sin(3A)= 1

Answer 2

Answer:

c . 23/27

Step-by-step explanation:

sin3A=3sinA-4sin^3

3×1/3-4/27

1-4/27

23/27

I hope this helps u