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प्रश्न
Choose the correct alternative:
If g(x, y) = 3x2 – 5y + 2y2, x(t) = et and y(t) = cos t then `"dg"/"dt"` is equal to
पर्याय
6e2t + 5sin t – 4cos t sin t
6e2t – 5 sin t – 4cos t sin t
3e2tt + 5sin t + 4cos t sin t
3e2t – 5sint + 4cos t sin t
उत्तर
6e2t + 5sin t – 4cos t sin t
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