Question

If A = B = 45°, verify that:
(i) sin (A - B) = sin A cos B - cos A sin B​

Answer 1

Answer:

Step-by-step explanation:

L.H.S.

= sin(A-B)

=sin(45-45)

=sin0

=0

R.H.S.

=sinAcosB- cosAsinB

=sin45 *cos45 - cos45 *sin45

=(1/srt2)* (1/srt2) -(1/srt)*(1/srt2)

=(1/2) - (1/2)

=0

=> sin(A-B) = sinA cosB -cosA sinB

Answer 2

Answer:

Check the image attached below for the answer.

Step-by-step explanation:

Check the image attached below for step by step explanation for your answer.

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