Easy Math Class 9 Level 9

If a = 7 and b = 3 then what is the value of a² - b²?

यदि a = 7 और b = 3 हो तो a² - b² का मान क्या होगा?

A) 30 / 30 B) 40 / 40 C) 48 / 48 D) 58 / 58
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Correct Answer

B. 40 / 40

Explanation

a² - b² = 49 - 9 = 40 so the correct answer is 40.

a² - b² = 49 - 9 = 40 इसलिए सही उत्तर 40 है।

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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