Question

Find the Period of \[2 cos^3 x + 5cos4x\]

Answer 1

\(\cos^3x\)'s period is \(2\pi\) and \(\cos 4x\)'s period is \(\pi/2\). The period for the given equations should be \(2\pi\).

Answer 2

equation*

Answer 3

lol....u seems to find the answer easily

Answer 4

any trick behind that

Answer 5

Practice. :-)

Answer 6

in my...book the soln is given half a page

Answer 7

@Ishaan94 hw cos^3 x period is 2 pie

Answer 8

Try plotting \(\cos^3x\). You will see it yourself or you can prove it as well.

Answer 9

Is this +2 's topic

Answer 10

idk. but you it's pretty basic you can learn it even class 10th.

Answer 11

you know* ...

Answer 12

lol...not in 10 th....

Answer 13

yes. you can. :-)

Answer 14

thxxxx