class 10th math exercise 5.3 question 3(ix) in hindi

Er Chandra Bhushan
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 Bihar board class 10th math exercise 5.3 question 3(ix) in hindi

Ncert class 10th math exercise 5.3 Q3(ix) in hindi

10th class math Exercise 5.3(ix) hindi mei 

3(ix) a=3, n=8 और S=192 दिया है। d ज्ञात कीजिए। 

हल : दिया गया है कि   a=3, n=8 और S=192 है। 

चूँकि S8=192  

इसीलिए सूत्र Sn=(n/2)[2a+(n-1)d] से, हम पाते हैं कि

 (8/2)[2×3+(8-1)d]=192 

4[6+7d]=192 

[6+7d]=(192/4)

6 +7d=48

7d=48-6

7d=42 

या d=6

अतः d= 6 है। 

 Class math exercise 5.3 Q.3(i) in hindi-click here

Class math exercise 5.3 Q.3(ii) in hindi⇒click here 

Class math exercise 5.3 Q.3(iii) in hindi⇒click here 

Class math exercise 5.3 Q.3(iv) in hindi⇒click here  

Class math exercise 5.3 Q.3(v) in hindi⇒click here 

Class math exercise 5.3 Q.3(vi) in hindi⇒click here  

Class math exercise 5.3 Q.3(vii) in hindi⇒click here

class 10th math exercise 5.3 question 3(x) in hindi- click here

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