What is the determinant of the 2 x 2 matrix [[1,2],[3,4]]?
2 x 2 matrix [[1,2],[3,4]] का determinant क्या है?
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Correct Answer
A. -2
ExplanationStep 1: Identify the concept: this is a 2 x 2 determinant. Step 2: determinant = ad-bc = 1*4-2*3 = 4-6 = -2. Step 3: For 2 x 2 determinant remember diagonal product difference.
Step 1: concept पहचानें: यह 2 x 2 determinant है। Step 2: determinant = ad-bc = 1*4-2*3 = 4-6 = -2। Step 3: 2 x 2 determinant के लिए diagonal product difference याद रखें।