The Solution of the differential equation `(dy)/(dx)=tan ((y)/(x))+(y)/(x)` isA. `cos ((y)/(x))=cx`B. `sin ((y)/(x))=cx`C. `cos((y)/(x))=cy`D. `sin ((y)/(x))=cy`

The Solution of the differential equation `(dy)/(dx)=tan ((y)/(x))+(y)

1.	The Solution of the differential equation `(dy)/(dx)=tan ((y)/(x))+(y)/(x)` isA. `cos ((y)/(x))=cx`B. `sin ((y)/(x))=cx`C. `cos((y)/(x))=cy`D. `sin ((y)/(x))=cy`
Answer» Correct Answer - B

The objective function `Z=4x_(1) +5x_(2)`, Subject to ` 2x_(1) +x_(2) ge 7,2x_(1)+3x_(2) le 15,x_(2)le 3, x_(1),x_(2)ge 0` has minimum value at the pointA. On x-axisB. On y-axisC. At the originD. On the line parallel to x-axis
A box contains 6 pens , 2 of which are defective Two pens are taken randomy from the bax .If r,v. X., : Number of defective pens obtained , then standard deviation of x=A. `+- (4)/(3sqrt(5))`B. `(8)/(3)`C. `(16)/(45)`D. `(4)/(3sqrt(5))`
The Solution of the differential equation `(dy)/(dx)=tan ((y)/(x))+(y)/(x)` isA. `cos ((y)/(x))=cx`B. `sin ((y)/(x))=cx`C. `cos((y)/(x))=cy`D. `sin ((y)/(x))=cy`
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