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Maths Puzzle
Numerical Ability
for what value of theta the expression is real and imaginary.
3+2*sin(theta)/1-2*sin(theta)
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book Other Question
How do i find the Exterior angle of a regular polygon with 15 sides
i have the choices
a)180
b)12
c)24
d)156
but i found the INTERIOR angle is 156 and then the
Exterior angle should be 204 right
Looking for help to see if I got this right.
Multiply:
(m^2+n^2-mn)(m^2+mn+n^2)= m^4+m^2n^2+n^4
thank you for your help!