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Ex 5.3, 1 (i) - Chapter 5 Class 10 Arithmetic Progressions (Term 2)
Last updated at Aug. 3, 2021 by Teachoo
Ex 5.3
Ex 5.3, 1 (i)
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Ex 5.3, 1 (ii)
Ex 5.3, 1 (iii) Important
Ex 5.3, 1 (iv)
Ex 5.3, 2 (i)
Ex 5.3, 2 (ii)
Ex 5.3, 2 (iii) Important
Ex 5.3, 3 (i)
Ex 5.3, 3 (ii)
Ex 5.3, 3 (iii)
Ex 5.3, 3 (iv) Important
Ex 5.3, 3 (v)
Ex 5.3, 3 (vi) Important
Ex 5.3, 3 (vii)
Ex 5.3, 3 (viii) Important
Ex 5.3, 3 (ix)
Ex 5.3, 3 (x)
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Ex 5.3, 10 (i)
Ex 5.3, 10 (ii) Important
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Chapter 5 Class 10 Arithmetic Progressions
Serial order wise
Transcript
Ex 5.3, 1 Find the sum of the following APs. (i) 2, 7, 12 ,β¦., to 10 terms. 2, 7, 12,β¦., to 10 term s We know that Sum of AP = π/2 (2a + (n β 1) d) Here n = 10, a = 2, & d = 7 β 2 = 2 Putting these in formula , Sum = π/π (2a + (n β 1) d) = 10/2 (2 Γ 2 + (10 β 1) Γ 5) = 5(3 + 9 Γ 5) = 5 (4 + 45) = 5 (49) = 245
