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All posts related to Mca entrance

Satanik
Shared from Sequencing/Grouping Games on Feb 09, 2018 9:25 PM
Show common data

Under the guidelines developed, what is the possible number of different teams which can be sent to the new office?

 
6
8
12
15
Please type your answer before submitting.

Not understood this question

Abhishek Kumar
Shared from Circle - 3 on Feb 09, 2018 8:27 AM

The equation ax2 + by2 + 2hxy + 2gx + 2fy + c = 0 represents a circle, if

 
a = b, h = 0
a = b ≠ 0, h = 0
a = b ≠ 0, h = 0, g2 + f2 - c > 0
a = b ≠ 0, h = 0, g2 + f2 - ac > 0
Please type your answer before submitting.

Correct answer is option(D).

Abhishek Kumar
Shared from Circle 2 on Feb 08, 2018 8:29 AM

If 2x2 + λ x y + 2y2 + ( λ - 4) x + 6y - 5 = 0 represents a circle, then its radius is

 
2 2
3 2
2 3
none of these
Please type your answer before submitting.

When lambda=0, then centre is(2,-3). therefore , it's radius is 3root(2).

Abhishek Kumar
Shared from Circle - 1 on Feb 07, 2018 10:54 AM

The circles x2 + y2 - 25 = 0 and 3(x2 + y2) - 30x - 40y + 175 = 0 touch each other at the point

 
(1, 2)
(2, 3)
(4, 5)
(3, 4)
Please type your answer before submitting.

Wrong question.

Abhishek Kumar
Shared from Differential Equations - 3 on Jan 20, 2018 7:57 AM

The equation of the curve through the point (1, 0) and slope is:

 
(y - 1) (x + 1) + 2x = 0
2x (y - 1) + x + 1 = 0
x (y - 1) (x + 1) + 2 = 0
None of these
Please type your answer before submitting.

In queston it is give that dy/dx=(y-1)/(x^2-x)but correct question is dy/dx=(y-1)/(x^2 x)