solve the equation in notebook please q7.
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2(1-sin²Ø) + 3sinØ - 3 = 0
2 - 2sin²Ø + 3sinØ - 3 = 0
-2sin²Ø + 3sinØ - 1 = 0
2sin²Ø - 3 sinØ +1 = 0
2sin²Ø - sinØ - 2sinØ + 1 = 0
sinØ(2sinØ - 1) -1 (2sinØ - 1) = 0
(sinØ-1)(2sinØ-1) = 0
If,
sinØ - 1 = 0
sinØ = 1
Again If,
2sinØ - 1 = 0
sinØ = 1/2
So,
SinØ = 1 or 1/2
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