Write Complex Expression in the form a + bi after rationalization - YouTube
a+bi=4
13 Writing Complex Numbers in a + bi Form (1.3) - YouTube
Comptex Numbers
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SOLVED:If the product of the two complex numbers a+4 i and 9-b i is a real number and if a=6, what is the value of b ? (A) 3 (B) 4 (C) 6 (D) 9