Find the exact solutions for 4 − x^2 = |2x − 1|
x=-1
x=-1+60.5
SV
Related Maths A Level answers
All answers ▸How do I solve this inequality: x^2>2x ?
Let w, z be complex numbers. Show that |wz|=|w||z|, and using the fact that x=|x|e^{arg(x)i}, show further that arg(wz)=arg(w)+arg(z) where |.| is the absolute value and arg(.) is the angle (in polar coordinates). Hence, find all solutions to x^n=1 .
Evaluate the integral (write on whiteboard, too complicated to write here)
Find the equation of the straight line tangent to the curve y=2x^3+3x^2-4x+7, at the point x=-2.