1
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The general solution of the differential equation

$(3 y-7 x+7) d x+(7 y-3 x+3) d y=0$ is

A

$(x-y+1)^2(x+y-1)^5=C$

B

$(x+y+1)^5(x-y-1)^2=C$

C

$(x-y-1)^2(x+y-1)^5=C$

D

$(x+y-1)^7=C$

2
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The general solution of the differential equation $(3 y-7 x+7) d x+(7 y-3 x+3) d y=0$ is

A

$(x-y+1)^2(x+y-1)^5=C$

B

$(x+y+1)^5(x-y-1)^2=C$

C

$(x-y-1)^2(x+y-1)^5=C$

D

$(x+y-1)^7=C$

3
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The general solution of the differential equation $x \cos \frac{y}{x}(y d x+x d y)=y \sin \frac{y}{x}(x d y-y d x)$ is

A

$\log (x y)=\log \cos \frac{x}{y}+C$

B

$\cos \left(\frac{y}{x}\right)=\frac{C}{x y}$

C

$\log (x y)=\log \sec \frac{x}{y}+C$

D

$x+y+C=0$

4
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In atomic scale the weakest force in nature is

A

strong force

B

electromagnetic force

C

gravitational force

D

weak force

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