Question

10th class lesson number 1 formulas

Answer 1

an=a+(n-1)d
sn=n÷2 (a+(n-1)d)

Answer 2

HII FRIEND,

HERE IS UR ANSWER,

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→HCF*LCM=PRODUCT OF TWO NUMBERS
According to Euclid’s Division Lemma if we have two positive integers a and b, →then there exists unique integers q and r which satisfies the condition a = bq + r where 0 ≤ r ≤ b.
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PLZ MARK AS BRAINLIEST

@suthardeep