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Mathematics Preparation for Engineering Entrance

(990 Posts)

This thread is dedicated to preparation for Mathematics section of Engineering Entrance exams like IITJEE, RPET, BITSAT, GCET, EAMCET, ISAT, KEAM, WBJEE etc. You may share questions related to topics like Mechanics, Algebra, Probability, Trigonometry, Calculus, Permutations & Combinations, Matrices & Determinants, Complex Numbers, Co-Ordinate Geometry, Statistics etc.

Question should not exceed 100 characters.Use add options for multiple choice questions and "Uploadimage/Add related data" for passage text papers.
Question should be at least 10 characters long.
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Saday
Posted on Sep 08, 2020 12:29 PM

is equal to:

 
7e
7
2e
2
Please type your answer before submitting.

I need solution to this question

Arun
Shared from JEE Main Mock - 1 on Jul 24, 2020 7:32 AM

The triangle formed by the tangent to the curve f(x) = x2 + bx - b at the point (1, 1) and the coordinate axes lies in the first quadrant. If its area is 2, then the value of b is

 
-1
3
-3
1
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First of all, How is (1,1) lying on the curve?

Ganesh Sai
Shared from JEE Main Mock - 1 on Jul 11, 2020 11:57 AM

In a plane, there are 37 straight lines, out of which 13 pass through the point A and 11 pass through the point B. Besides, no three lines pass through the same point, no line passes through both points A and B, and no two lines are parallel. The number of intersection points the lines have is equal to

 
535
601
728
963
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Here my doubt is it is given that 13 pass through point A and 11 pass through point B. at the same time it is give that no three lines pass through the same point. how is this possible?

Ch Aryan
Shared from EAMCET - 2 (Engineering) on Jun 02, 2020 7:14 PM

If z1 and z2 are any two complex numbers, then

 
|z1 + z2| |z1| + |z2|
|z1 + z2| > |z1| + |z2|
|z1 + z2| |z1| + |z2|
|z1 + z2| = |z1| + |z2|
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Can you explain breifly

Ayush Kumar
Shared from Straight Line (Hard) on May 15, 2020 1:23 PM

The line L has intercepts a and b on the coordinate axes. The coordinate axes are rotated through a fixed angle, keeping the origin fixed. If p and q are the intercepts of the line L on the new axes, then is equal to

 
– 1
0
1
None of these
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Where the fuck is solution