Solution: Sin (B – A) is equal to _______, when B = 270 degrees and A is an acute angle.

Sin (B – A) is equal to _______, when B = 270 degrees and A is an acute angle. How to solve problems using difference of angles formulas?

Sin (B – A) is equal to _______, when B = 270 degrees and A is an acute angle.

Problem Statement: ECE Board April 1999

Sin (B – A) is equal to _______, when B = 270 degrees and A is an acute angle.

Problem Answer:

Sin (B – A) is equal to -cos A.

Solution:

Online Questions and Answers in Plane Trigonometry Problems


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