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WELCOME TO OPENSTUDY!! :D
To solve these kinds of questions you need to know some stuff. You will have 12 _ _ _ _ -13 a = 12 An = -13 n = 6 So we have to find d [Common difference] :D An = a + (n-1)d -13 = 12 + (5)d d = -5 Now I hope you know how to go about this... :D Understood this? :)
thw ques is if a,b,c in A.P. and x is the arthmetic mean of a and b ,y is the artmetic mean of b and c then how to prove that a,x,b,y,c is in A.P
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srry it's the
Did you get the solution to the previous one??
What did you not get in that?
Don't jump to the next question.. Finish one and then do.
the ques is if a,b,c in A.P. and x is the arthmetic mean of a and b ,y is the artmetic mean of b and c then how to prove that a,x,b,y,c is in A.P
WHAT? ARE YOU EVEN LISTENING/LOOKING AT WHAT I TYPED??????
this is my first day and i don't know if have done something wrong but still i have not got my ans
No problemo! :) Have you done AP bfore? If you haven't look up some websites/READ, If you have ask what you did not understand. :)
ya i have learned ap but where is ur ans i can't see here
We cannot give answers here... We can help you but it is your question and you have to find it out!! :D I can guide you a 100 times if you want!! :D
ok then just give a hint about the solution of this question
You will have 12 _ _ _ _ -13 a = 12 An = -13 n = 6 So we have to find d [Common difference] :D An = a + (n-1)d -13 = 12 + (5)d d = -5 COMMON DIFFERENCE = -5 Second term = a + d = 12 - 5 = 7 Third term = a+2d = 12-10 = 2 Understood this? :)
YA I KNW VERY WELL about this
but my question is different
You have posted 2 different questions in the same question. Did you understand and get the answer to the first question?