QUESTION
(5+i)(5-i) का मान क्या होगा?
What is the value of (5+i)(5-i)?
CORRECT ANSWER
C
26 / 26
EXPLANATION INSIDE
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Step 1: यह conjugate product है। Step 2: (5+i)(5-i)=5²-i²=25-(-1)=26। Step 3: i² = -1 हमेशा याद रखें।