Question

Q2. Prove that : \frac{2tan\theta~sin~\theta(1-tan\theta)+2~sin~\theta~sec^{2}\theta}{(1+tan~\theta)^{2}}=\frac{2~sin~\theta}{1+tan~\theta}


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Answer 1

Answer:

draw a circuit diagram containing a bulb ,a resistor, an ammeter ... two voltmeter across the bulb and resistor

Answer 2

Answer:

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