Question

What is the answer of -sinA×cosA​

Answer 1

Answer:

1/2 sin2theta

Step-by-step explanation:

sintheta ×cos theta=?

double angle formula

we know that

sin2 theta = 2 sintheta cos theta.{equation 1}

multiplying and dividing equation 1 by 2

2(sintheta*costheta)/2 = sin2theta/ 2

sintheta × costheta= 1/2 (sin2theta)

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