Find the value of 4^0 × 5^-1.
Answers
Answered by
2
Answer:
1/5
Step-by-step explanation:
(4^0)(5−¹)
=1(5−¹)
=1(1/5)
=1/5
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Answered by
3
(i)
14
C
5
=
5!(14−5)
5!(9!)
14!
5!⋅9!
14×13×12×11×10×9!
=
5×4×3×2×1
14×13×12×11×10
=7×13×11×2
=2,002
(ii)
90
C
2
=
2!(90−2)!
90!
=
2!⋅88!
90!
=
2!⋅88!
90×89×88!
=
2×1
90×89
=4005.
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