Question

If sin(A)= 1/3 then the value of sin (3A)
is.....​

Answer 1

Answer:

sinA=3/4

sin3A=3sinA-4sin^3A

=3×3/4–4(3/4)^3

=9/4–4×27/64

=9/4–108/64

=(9×16–108)/64

=(144–108)/64

=36/64

=9/16

Step-by-step explanation:

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