Please answer these maths class 10th AP ques...
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a , b ,c ,d ,e in AP
let first term is a and common difference is d .
then ,
first term = a
2nd term = b = a+d
3rd term = c = a+2d
4th term = d = a+3d
5th term = e = a+4d
now ,
=> a - 4b + 6c -4d+e
= a - 4( a+d ) + 6(a+2d) - 4(a+3d) + a+4d
= a -4a - 4d + 6a + 12d - 4a -12d + a + 4d
= 0
let first term is a and common difference is d .
then ,
first term = a
2nd term = b = a+d
3rd term = c = a+2d
4th term = d = a+3d
5th term = e = a+4d
now ,
=> a - 4b + 6c -4d+e
= a - 4( a+d ) + 6(a+2d) - 4(a+3d) + a+4d
= a -4a - 4d + 6a + 12d - 4a -12d + a + 4d
= 0
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