the 7th term of an A.P. is 88 and the 88th term is 7. which term of this A.P. is zero?
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Answer:
t7= 88. t88= 7.
Step-by-step explanation:
t7= a+ 6d. :: 88= a+6d. t88 = a+ 87d. :: 7= a+87d. subtacting both equations a+ 87d= 7. - a+6d= 88. :: d=-1 onsolving. d=-1 substitute this in equation :: a+87d=7 :: a+ -87 = 7:: a= 94. t0=? tn= a+ n-1×d :: t0= 94 + 0-1 ×-1:: 94-1×-1 :: 94+1 :: 95::: t0 = 95 ans:
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