examday

Community mocks

Beyond Horizon Set 4 Paper 1 · Q4

Paper 1Algebra

Evaluate the following sum

(1⋅1!)+(2⋅2!)+(3⋅3!)+⋯+(50⋅50!).(1\cdot1!)+(2\cdot2!)+(3\cdot3!)+\cdots+(50\cdot50!).
A51!51!
B2.5!2.5!
C51!−151!-1
D51!+151!+1
E50!+150!+1
F50!+150!+1

Read the questions freely. Sign in to check your answer, see the worked solution and save your progress.

Sign in to check your answerPractise the whole paper →