Evaluate/ मान ज्ञात कीजिए।

Evaluate/ मान ज्ञात कीजिए।
$145 ^2$.

20975 21025 21075 21005

Detailed Solution & Logic

Correct Answer:

21025

Evaluate:
$145^2$

Use identity:
$(a + b)^2 = a^2 + 2ab + b^2$

$145^2 = (100 + 45)^2$

$= 100^2 + 2 \times 100 \times 45 + 45^2$

$= 10000 + 9000 + 2025$

$= 21025$

Final Answer: 21025

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