The sixth term of an AP is -10 and its tenth term is -26. Determine. 15th term of an AP
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a+5d=-10...... (I)
a+9d=-26....... (II)
So, - 4d=16
d= - 4
Now by (I),
a= - 10-(-4×5)
a=10
So the 15th term of AP is,
a+14d=10+(-4×14)
= - 46
YOU SHOULD UNDERSTAND
MARK AS BRAINLIEST
a+9d=-26....... (II)
So, - 4d=16
d= - 4
Now by (I),
a= - 10-(-4×5)
a=10
So the 15th term of AP is,
a+14d=10+(-4×14)
= - 46
YOU SHOULD UNDERSTAND
MARK AS BRAINLIEST
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