Question 140381
Evaluate:
{{{25/(4-3i)}}} Rationalise the denominator by multiplying the top and bottom by the conjugate of (4-3i) which is (4+3i)
{{{(25/(4-3i))((4+3i)/(4+3i))}}} Simplify.
{{{25(4+3i)/(16-9i^2)}}} Substitute {{{i^2 = -1}}}
{{{25(4+3i)/(16-9(-1))}}}
{{{25(4+3i)/16-(-9)}}}
{{{25(4+3i)/25}}} Cancel the 25's leaving you with:
{{{4+3i}}}