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If common difference of an ap …

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If common difference of an ap is -4 and seventh term of an ap is 4 find the first term of an ap

Posted by Charanjit Bajwa 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

??Róyál⛔⛔ ????Himánshú⚡⚡ 6 years, 10 months ago

A=28

Ayush Ak 6 years, 10 months ago

d=-4 a7=4. a+6d=4 a=4-6(-4) a= 4+24=28

Sanju Gulia 6 years, 10 months ago

28

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