Question 142

sin θ - 3 sin θ + 2 = 0 will be true if

Solution

Expression : $$sin \theta - 3sin \theta + 2 = 0$$

=> $$2sin \theta = 2$$

=> $$sin \theta = 1 = sin 90^{\circ}$$

=> $$\theta = 90^{\circ}$$


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