MCQOPTIONS
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| 1. |
If \(z = {e^x}\sin y,x = {\log _e}t,y = {t^2}\) then \(\frac{{dz}}{{dt}}\) is given by the expression- |
| A. | \(\frac{{{e^x}}}{t}(\sin y - 2{t^2}\cos y)\) |
| B. | \(\frac{{{e^x}}}{t}\left( {\sin y + 2{t^2}\cos y} \right)\) |
| C. | \(\frac{{{e^x}}}{t}\left( {\cos y + 2{t^2}\sin y} \right)\) |
| D. | \(\frac{{{e^x}}}{t}\left( {\cos y - 2{t^2}\sin y} \right)\) |
| Answer» C. \(\frac{{{e^x}}}{t}\left( {\cos y + 2{t^2}\sin y} \right)\) | |