If 4sintheta=3costheta then the value of 4sin2theta-3cos2theta+2
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Answer:
The required value is 5
Step-by-step explanation:
4sinθ = 3cosθ
4sin2θ - 3cos2θ + 2 = 4 (2sinθcosθ) - 3 (2c0s²θ -1) + 2
= 4 sinθ x 2cosθ - 6 cos²θ +3 +2
= (3cosθ )x 2cosθ - 6cos²θ + 5
= 6 cos²θ - 6cos²θ +5
= 5
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