The fourth term of a G.P. is the square of it's second term and it's first term is -3. Determine it's 7th term. I need the answer along with the solution.
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Answered by
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ar^3=(ar)^2
ar^3=a^2 r^2
a=r
r=-3
T7=ar^6
=(-3)*(-3)^6
=-2187
Therefore the 7th term of GP is - 2187
ar^3=a^2 r^2
a=r
r=-3
T7=ar^6
=(-3)*(-3)^6
=-2187
Therefore the 7th term of GP is - 2187
Astrophysicist:
Thanks for the ans but can there be a different solution ??¿
is this answer right or wrong
I think my answer is correct
its correct obviously
the steps depend on what your teacher has thought you
i was just looking out for a smarter solution
Answered by
1
The answer is -2187 as u can refer from the pic ....I have tried my best to explain it ....hope u get it..if u hv any doubt regarding this plzz consider refering it once again..
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