(5-2d-asquare) (3-2d)
Answers
Answered by
0
Answer:
ANSWER
9
44
=3+(3+d)
4
1
+(3+2d)
4
2
1
+…......... {i}
By dividing above equation by 4,
9
11
=0+(3)
4
1
+(3+d)
4
2
1
+(3+2d)
4
3
1
+…............ {ii}
Subtracting {ii} from {i} term by term, we get
9
33
=3+
4
d
+
4
2
d
+
4
3
d
+…
Using the formula for infinite G.P. (∣r∣<1)
a+ar+ar
2
+⋯=
1−r
a
We get,
9
33
=3+
1−
4
1
4
d
⇒
9
33
−3=
3
d
⇒
3
2
×3=d
⇒d=2
Answered by
2
Answer:
Sorry... didn't understand your question......
Because it is some what unclear.....
But, I tried my level best to understand it....
(5-2d-a²)(3-2d)
15-10d-6d²+4d²-3a²+2da²
15-16d+4d²-3a²+2da²
15-d(16-4d)-a²(3-2d)
Hope it's helped you.......
it is my opinion only......
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