Math, asked by guruprashathsolution, 5 months ago

find the modulus of (7+2i)(11-3i)

Answers

Answered by anurag2147

0

Answer:

(7+2i)(11-3i) = 77+21i+22i+ 6i² = 71+43I

r= ।z।= √71² +43² = √ 5041+1849 = √6890= 270

r= 270

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