Question

What is the period of `f(theta) = tan ( (5 theta)/7) - cos ( (2 theta)/ 5 )`?

Answer 1

`35pi`

Explanation:

Period of `tan ((5t)/7)` --> `(7pi)/5`
Period of `cos ((2t)/5)` -->`(10pi)/2= 5pi`
Least multiple of `(7/5)` and 5 --> 35
Common period --> `35pi`