can anyone solve this please, need an urgent help
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Ok here is the answer
Please mark it as brainliest it would help me
Please mark it as brainliest it would help me
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xanderup:
thnx bro for your cooperation
Its ok yaara
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heya ,
it's Aastha....
In AP :
a = 0.5 π , d = 0.5 π , n = 13
then,
◆ Sn = n/2 { 2a + (n-1)d}
◆ S13 = 13 /2 { π + 6π}
◆S13=. 13/2 × 7π
◆ S13= 143 .
I hope it help you........
it's Aastha....
In AP :
a = 0.5 π , d = 0.5 π , n = 13
then,
◆ Sn = n/2 { 2a + (n-1)d}
◆ S13 = 13 /2 { π + 6π}
◆S13=. 13/2 × 7π
◆ S13= 143 .
I hope it help you........
thnx for your support
ur welcome
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