If a cos θ -b sin θ=c , show that a sin θ + bcos θ=±a2+ b2-c2 .

If $a \cos θ - b \sin θ = c$ , show that $a \sin θ + b \cos θ = \pm \sqrt{a^{2} + b^{2} - c^{2}}$ .

Matching exercise

Match the items on the right to the items on the left.

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