QUESTION
(4+i)(4-i) का मान क्या होगा?
What is the value of (4+i)(4-i)?
CORRECT ANSWER
C
17 / 17
EXPLANATION INSIDE
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Step 1: यह conjugate product है। Step 2: (4+i)(4-i)=4²-i²=16-(-1)=17। Step 3: i² = -1 हमेशा याद रखें।