The sum of first three term of a g.p id 13/12 and their product is -1 find g.p
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Let the g.p be a/r,a,ar
Now acc. to ques. a*ar*a/r = -1
a^3 = -1 ;a= -1
Now a/r +a +ar= 13/12
Put value if a and find r
Now acc. to ques. a*ar*a/r = -1
a^3 = -1 ;a= -1
Now a/r +a +ar= 13/12
Put value if a and find r
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