Chapter : Finite and Infinite Sequences( Arithemetic and Geometric Progression)
I need the solved solutions of these two math Questions!
Q1. a1,a2,a3,a4,a5 are first five terms of an Arithemetic progression, such that a1+a3+a5 = -12 and a1*a2*a3=8. Find the first term (T1) and the common difference.
Q2. A side if an equilateral triangle is 20cm long. A second equilateral triangle is inscribed in it by joining the mid points of the sides of the first triangle. The process is continued till the fourth triangle is formed. Find the perimeter of the fourth inscribed equilateral triangle.
The correct answers Ans1= T1=2; Common difference = -3 Ans2= 7.5cm ( as you can see i know the final answers to these questions.. i need the solutions!)
These are grade 11 math questions
2006-11-11
19:02:00
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4 answers
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asked by
rocker_girl
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in
Mathematics