a7=a 6d________2eq.
a5=a 4d________3eq.
From eq. 2and3
(a 6d)-(a 4d)=12
2d=12
d=6
Putting value of d in eq.1
a 2(6)=16
a 12=16
a=16-12
a=4
Written on Nov. 3, 2019, 10:52 a.m.
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Answer of this question
Determine the a.p. whose third term is 16and 7th term exceed the 5th t
all type musica3=a 2d=16________1 eq.
a7=a 6d________2eq.
a5=a 4d________3eq.
From eq. 2and3
(a 6d)-(a 4d)=12
2d=12
d=6
Putting value of d in eq.1
a 2(6)=16
a 12=16
a=16-12
a=4
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