Given i=√−1, i−2i is equal to
- −1–2i
- −1+2i
- −2−i
- 1−2i
- 1+2i
Online Resource for ACT Math
For all θ, the expression csc2θtan2θ–1 is equivalent to:
Try this ACT math practice question on exponents and scientific notation:
Given a and b are positive integers, what is 60×10a3×10b expressed
in scientific notation?
Practice Test #1: Question 59 Mathematics
In scalene triangle △GHI shown below, point J lies on side ¯HI, →GJ bisects ∠HGI such that ∠HGJ and ∠IGJ each measure θ, and the given lengths a, b, c, d, and e are in inches and are distinct. For all possible values of θ, the area of △GHJ is what fraction of the area of △GHI ?