Mathematics · Algebra
Select the option that is true regarding the following labelled Assertion (A) and Reason (R). Assertion (A): The value of (3.9)3 + 9 × 1.3 × 4.29 + 11.7 × (1.1)2 + 1.3311.23 × 1.23 + 0.77 (0.77 + 0.6 × 4.1) is 31.25. Reason (R): Using (a + b)3 = a3 + b3 + 3ab(a + b) and (x + y)2 = x2 + y2 + 2xy.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both A and R are true but R is not a correct explanation of A.
- 2A is false and R is true.
- 3A is true and R is false.
- 4Both A and R are true and R is a correct explanation of A.✓
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Both A and R are true and R is a correct explanation of A.
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