Medium Math Class 9 Level 1

If a = 2 and b = 3 then what is the value of (a + b)² - (a - b)²?

यदि a = 2 और b = 3 हो तो (a + b)² - (a - b)² का मान क्या होगा?

A) 12 / 12 B) 20 / 20 C) 24 / 24 D) 25 / 25
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Correct Answer

C. 24 / 24

Explanation

By identity, (a + b)² - (a - b)² = 4ab = 4 × 2 × 3 = 24.

सूत्र से (a + b)² - (a - b)² = 4ab = 4 × 2 × 3 = 24।

Related Questions

Easy Math Class 10 Level 1

What is the area of a circle with radius 7 cm when π = 22/7?

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल कितना होगा जब π = 22/7 हो?

A. 44 सेमी² / 44 cm² B. 77 सेमी² / 77 cm² C. 154 सेमी² / 154 cm² D. 308 सेमी² / 308 cm²
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