SAT Math: Applying Properties of Imaginary Numbers to Simplify a Complex Fraction

If and the complex number above is rewritten as a + bi, where a and b are real number constants, what is the value of a? Round to one decimal place.

Additional Topics in MathCircle theorems
Product TypeSAT Math
SATSAT Math
SAT MathAdditional Topics in Math
Numbers and Operations
Test PrepSAT Math