Evaluate the determinants.
∣∣ ∣∣2−1−202−13−50∣∣ ∣∣
Let A=∣∣ ∣∣2−2−202−13−50∣∣ ∣∣ By expanding along R2 (second row), we get |A|=0∣∣∣−1−2−50∣∣∣−2∣∣∣2−230∣∣∣−(−1)∣∣∣2−13−5∣∣∣=0+2(0+6)+(−10+3)=12−7=5
Evaluate the determinants..
∣∣ ∣∣3−1−200−13−50∣∣ ∣∣
∣∣ ∣∣3−4511−2231∣∣ ∣∣
∣∣ ∣∣012−10−3−230∣∣ ∣∣
Evaluate the determinant. ∣∣ ∣∣3−4511−2231∣∣ ∣∣
∣∣∣cosθ−sinθsinθcosθ∣∣∣
∣∣∣x2−x+1x−1x+1x+1∣∣∣
[24−5−1]