In an AP the common difference is -4 and the 17th term is 4. Find the

1.	In an AP the common difference is -4 and the 17th term is 4. Find the first term
Answer» See that.... 17th term is... 4 ....... Equation1️⃣ and.. We know that... 17th = a +16d equation 2️⃣ now from equation 1️⃣ and 2️⃣ we get that.... 4=a +16d and (d=-4).......... 4= a+(-64)..... So a = 68...... ?? hope u understood welll Sorry, a = 68 a = 64 D=-417th term is 4a+16d= 4a+16*-4=4a-64=4a=4+64a=68First term is 68

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