SOLUTION: A circuit with two impedances Z1=10-j2 and Z2=5+j2 in parallel has an approximate admittance of?

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Question 1109765: A circuit with two impedances Z1=10-j2 and Z2=5+j2 in parallel has an approximate admittance of?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!

Equivalent admittance is +Mho%5Beq%5D+=+%28+1%2FZ%5Beq%5D+%29+=+%28Z%5B1%5D%2BZ%5B2%5D%29%2F%28Z%5B1%5DZ%5B2%5D%29+

+Mho%5Beq%5D+=+%28%2810-j2%29%2B%285%2Bj2%29%29+%2F+%28%2810-j2%29%285%2Bj2%29%29+
= +cross%2815%2F%2854-j10%29%29+ <<<— should read +15%2F%2854%2Bj10%29+
= ++15%2854-j10%29%2F%28%2854%2Bj10%29%2854-j10%29%29+
= ++%28810-j150%29%2F3016+
= +highlight%28+%28%28405-j75%29%2F1508%29%29+ mhos
or approx +highlight%280.268568+-++j%2A0.049735%29+ mhos