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Maths, Addmaths and Statistics: Post your doubts here!

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View attachment 44104
The last 2 parts, I think I'm making some stupid mistake again. :(
bii) PU= PQ+QU
3 and -9 + 7 and 2= 10 and -7. But the answer in MS is 10 and 7. Someone explain.
b iii)
QS= QP+PS
-3 and 9 + 17 and k= 14 and 4 (QU= 7 and 2 so it's twice)
so k according to me is 13 but it is -5 in the MS. Please help :/
Its 3+7 not -3+7.....it gives 10.
 
Messages
2,515
Reaction score
4,065
Points
273
View attachment 44104
The last 2 parts, I think I'm making some stupid mistake again. :(
bii) PU= PQ+QU
3 and -9 + 7 and 2= 10 and -7. But the answer in MS is 10 and 7. Someone explain.
b iii)
QS= QP+PS
-3 and 9 + 17 and k= 14 and 4 (QU= 7 and 2 so it's twice)
so k according to me is 13 but it is -5 in the MS. Please help :/
It 3+7 and -9+2=That gives 10 and -7

Whats so hard about that?
 
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