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ID#4791 Higher Math 1st - Sylhet - 2025 MCQ

$5 + 12i$ এর বর্গমূল কোনটি?

ID#4792 Higher Math 1st - Sylhet - 2025 MCQ

$z = 1 - i$ এর আর্গুমেন্ট কত?

ID#4758 Higher Math 1st - Chittagong - 2025 MCQ

$\cos\tan^{-1}\cot\sin^{-1}x = ?$