Question

sin2B= 2sin B is true when B is equal to
​

Answer 1

Here, sin2B= 2sin B

or, 2 sinB CosB = 2 sinB

or, cosB =1

or, cosB = cos 0°

or,B =0°

so, when B=0°

Answer 2

Answer:

14 sin2@33

Step-by-step explanation:

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