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Integrate tan(x)^2 with respect to x

sin(x)2 + cos(x)2 = 1 divide by cos(x)2 tan(x)2 + 1 = sec(x)2 therefore tan(x)2 = sec(x)2 - 1 integral of sec(x)2 - 1 rwt x = tan(x) - x + C therefore the integral of tan(x)2 rwt x = tan(x) - x + C

OO
Answered by Osman O. Maths tutor
7556 Views

Where and why do we plot points on cumulative frequency graphs?

At the end of each group. Say you have a table of groups and frequencies corresponding to those groups, for example for x we have group 0<x<=5 with frequency 6 and group 5<x<=15 with frequency...

OO
Answered by Osman O. Maths tutor
5004 Views

How to differentiate a bracket raised to a power i.e. chain rule

Lets say the equation to be differentiated takes the following format y = (ax2+bx+c)n, to find dy/dx: (1) Make u equal the contents of the bracket, u=ax2+bx+c. (2) Substit...

DF
Answered by David F. Maths tutor
25440 Views

How to find the equation of a line connecting two given coordinate points.

The equation of the line will be in the set form for a straight line, this being y = mx + cHence substitute the x and y values of one of the points into this equation.Repeat for the other coordinate.Hence...

KS
Answered by Kazuaki S. Maths tutor
2884 Views

In a bag of 72 red and green marbles, 5/9 are green. What is the number of red marbles in the bag?

72 cards5/9 are green = 72/(5/9) = 40 green marbles72 - 40 = 32 red marbles

VS
Answered by Venn S. Maths tutor
3440 Views

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