Question

please answer this q no 6
it's very urgent
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Answer 1

Answer:

-2 is answer

hope help you

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plz mark as brainliest

Answer 2

Ans:-

6. 1+3+5+7+9+11+13+15+17+19+21 - 123

We know that 1+3 = 2², similarly 1+2+5=3²

Now,

= 1+3+5+7+9+11+13+15+17+19+21-123

= (11)² - 123

= 121 - 123

= -2

here is your answer

hope it will help you