5 Questions
What is the result of adding equations (i) and (ii)?
sin(a+)-sin(a-)-2 sin a cos B
What is the result of subtracting equation (i) from equation (iii)?
sin(a+)-sin(a-)-2 cos a sin
What is the result of adding equations (i) and (iv)?
cos(a+)+cos(a-)-2 cos a cos
What is the result of subtracting equation (iv) from equation (ii)?
cos(a+)-cos(a-)-2 sin a sin
What substitutions are made to simplify the identities?
a+B=P and a-B=Q
Test your knowledge of trigonometric identities, including sum, difference, and product formulas, and practice applying them to solve problems.
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