8th term of the series 2 -2-2-0- will be

The correct option is C 5 √(2)Obviously the given series 2√(2) + √(2) + 0 + .... is an A.P. Here a = 2√(2), d = √(2). Hence 8th term of the series = 2√(2) ...

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Standard XI

Mathematics

Nth term of A.P

8th term of t...

Question

8^th term of the series $2 \sqrt{2} + \sqrt{2} + 0 + . . . .$ will be

- 5 \sqrt{2}

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5 \sqrt{2}

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10 \sqrt{2}

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- 10 \sqrt{2}

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Solution

The correct option is B $5 \sqrt{2}$
Obviously the given series $2 \sqrt{2} + \sqrt{2} + 0 + . . . .$ is an A.P. Here $a = 2 \sqrt{2}, d = - \sqrt{2} .$
Hence 8^th term of the series $= 2 \sqrt{2} + (8 - 1) (- \sqrt{2} = - 5 \sqrt{2} .$

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8th term of the series 2√2+√2+0+.... will be

The correct option is B 5√2Obviously the given series 2√2+√2+0+.... is an A.P. Here a=2√2,d=−√2. Hence 8th term of the series =2√2+(8−1)(−√2=−5√2.

8^th term of the series $2 \sqrt{2} + \sqrt{2} + 0 + . . . .$ will be

The correct option is B $5 \sqrt{2}$
Obviously the given series $2 \sqrt{2} + \sqrt{2} + 0 + . . . .$ is an A.P. Here $a = 2 \sqrt{2}, d = - \sqrt{2} .$
Hence 8^th term of the series $= 2 \sqrt{2} + (8 - 1) (- \sqrt{2} = - 5 \sqrt{2} .$