" (ii) "a=7" और "a_(13)=35" दिया है। "d" और "S_(13)" ज्ञात कीजिए। "

If a=7 and a_(13)=35, then find d and S_(13)

In an A.P: given a= 7 , a_(13)=35 , find d and S_(13)

यदि "(3+4i)/(4-5i)=a+ib" हो,तो "*a'" और ' "b" ज्ञात कीजिए। "

In an AP : Give a = 7 , a_(13)= 35 , find d and S_(13) .

In an AP: (ii) Given a = 7, a_(13) = 35 , find d and S_(13) .

In an AP : given a = 7, a_(13) = 35 , find d and S_(13) .

If a=7 and a_13=35 , then find d and S_13 .

In an AP:(ii) given a=7, a_13=35 ,find d and S_13 .

In an AP: (i) Given a=5, d=3, a_(n) = 50 , find n and S_(n) (ii) given a=7, a_(13) = 35 , find d and S_(13) . (iii) given a_(12) = 37, d=3 , find a and S_(12) (iv) given a_(3) = 15, S_(10) = 125 , find d and a_(10) (v) given a=2, d= 8, S_(n) = 90 , find n and a_(n) (vi) given a_(n) = 4, d=2, S_(n) = - 14 , find n and a. (vii) given l=28, S= 144, and there are total 9 terms, find a.