t20=176 , a=100 find s20.
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here is your answer
t20 = 176
a + 19d = 176
100+19d =176
19d =176-100
d=76/19
d=4
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so
s20=20/2(2*100+19*4)
s20= 10(200+76)
s20=10*276
s20 = 2760
plz follow me
t20 = 176
a + 19d = 176
100+19d =176
19d =176-100
d=76/19
d=4
plz follow me
so
s20=20/2(2*100+19*4)
s20= 10(200+76)
s20=10*276
s20 = 2760
plz follow me
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