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Excellent, and simple solution... I need more help on sequences and series...

Give some more trickier questions. I will try to solve them

Hey is my answer for that question right? Post some more please!

Hey dude, I think you edited your first post. IN that you gave that for a function f(kx), period will be kt.

Anyway, for the second one :

For (tanx)^3, period is pi. For sin(x/3), period is 3pi. LCm is 3pi. These two are not complementary functions, so the period is 3pi.

This is the first time I am coming across such a method. Let me try:

For 3sin²4x, period will be 4

. For 4 Cos⁴x, period will be

. Now LCM is 4

Since there is no denominator, the period is 4pi.

Am I right?

Torque is something that rotates a body. Just like how a force can make a body move, for example, if you kick a football, you are giving it some force and it moves in the air.

Torque is a similar concept, it is a force which makes a body rotate about an axis. This concept is used in car engines to rotate the wheels for example.

Torque is related to force as Torque = Force x Perpendicular Distance

Any other approaches?

No idea dude... whats your rank btw?

www.annauniv.edu

go there, and click on tnea 2007, or you will also see a scrolling link.

Whats your rank? I got 7588, community rank of 4500

Excellent work!

Anyone?

What the heck is wrong with you? Why do you ask such questions?

If g be the inverse of f, and if f'(x) = 1/(1+x³), then g'(x) = ?

I almost arrived at the answer, I guess I am messing up the properties of inverse functions somewhere.

Nice solution elessar, but I have one doubt. Why is the angle between the momentum vectors taken as 135 degrees and not as 45 degrees?