किसी गु. श्रे. का पहला पद 5 तथा सार्व अनुपात -2 है। छठवाँ पद क्या होगा ?
The first term of a G. P. is 5 and the common ratio is - 2, what is the 6th term ?
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Answer:
-160
Step-by-step explanation:
As we know the formula for nth term of G.P is,
a×r^(n-1)
where a = first term of G.P
r = common ratio of G.P
n = nth term
By this formula:
Answer = 5×(-2)^(6-1)
= 5×(-2)^(5)
= 5×(-32)
= -160
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