engineering recuitment ONGC AEE Mechanical Mock Test 2025 Engineering Mathematics Complex Variables Complex Functions
\(\cos ^{-1}\left(\frac{3-2 i}{3+2 i}\right)\) का काल्पनिक भाग = ______ होगा।
1
\(y =log[ \sqrt{(\frac{25}{13})} + i\sqrt{\frac{12}{13}}]\)
2
\(y =log[ \sqrt{(\frac{1}{13})} - i\sqrt{\frac{12}{13}}]\)
3
log 7
4
log √7
5
log 8