Math, asked by advkaramjeetsingh, 11 months ago

ques 8 ....exponents chapter

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Answered by aabhakrvijay

1

Step-by-step explanation:

given that

1²+2²+3²+.......+10²=385

now,

2²+4²+6²+....+20²

=2²(1²+2²+3²+.....+10²)

=4×385

=1540 answer

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