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Solving Sin X=a

Mathematics · Class 12

Find a reference angle and use quadrants where sine has the required sign.

Solving sin x=a
rule
worked example
Solving sin x=a: Find a reference angle and use quadrants where sine has the required sign.
CONCEPT AND RULE: Find a reference angle and use quadrants where sine has the required sign.
METHOD: For solving sin x=a, identify the given information and required result. Select the matching definit
Find a reference angle and use quadrants where sine has the required sign.
Worked pattern: sin x=12 gives x=pi/6+2npi or 5pi/6+2npi.

Right triangle — Solving Sin X=a — original sketch for this lesson (not copied from a textbook).