Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Sneha Tirkey 3 years, 2 months ago
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Posted by Sarika Maurya 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
Given series is
{tex} 1+6+11+16+\ldots . .+x=148 Here, a=1, d=6-1=11-6=16-11=5 and \mathrm{S}_{\mathrm{n}}=148 \begin{aligned} & \because \mathrm{S}_{\mathrm{n}}=\frac{\mathrm{n}}{2}[2 \mathrm{a}+(\mathrm{n}-1) \mathrm{d}] \\ & \therefore 148=\frac{\mathrm{n}}{2}[2 \times 1+(\mathrm{n}-1) 5] \\ & \Rightarrow 296=2 \mathrm{n}+5 \mathrm{n}^2-5 \mathrm{n} \\ & \Rightarrow 296=5 \mathrm{n}^2-3 \mathrm{n} \\ & \Rightarrow 5 \mathrm{n}^2-3 \mathrm{n}-296=0 \\ & \Rightarrow(\mathrm{n}-8)(5 \mathrm{n}+37)=0 \\ & \Rightarrow \mathrm{n}=8, \mathrm{n}=\frac{-37}{5} \end{aligned} {/tex}
{tex}\begin{aligned} & \therefore \mathrm{n}=8 \\ & (\because \mathrm{n} \text { cannot be negative }) \\ & \text { Now, } \mathrm{T}_{\mathrm{n}}=\mathrm{a}+(\mathrm{n}-1) \mathrm{d} \\ & \mathrm{x}=1+(8-1) \times 5 \\ & \Rightarrow \mathrm{x}=1+35 \Rightarrow \mathrm{x}=36 . \end{aligned}{/tex}
Posted by Sarika Maurya 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
The dimensions of the cuboid so formed are as under:
l= length=15cm,b= breadth=5cm, h= height =5cm
Surface area of the cuboid =2(15×5+5×5+15×5)cm2
=2(75+25+75)cm2=350cm2
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Preeti Dabral 3 years, 2 months ago
i Technical inputs resulted in the green revolution in sixties and seventies of the twentieth century. ii High yielding and early maturing variety of seeds have been used. iii Instead of bio-fertilizers chemical fertilizers are used. iv Flooding of fields are replaced by drip irrigation and the use of sprinklers.
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Preeti Dabral 3 years, 2 months ago
According to the American Institute of Stress, 4 in 5 college students experience frequent stress. Unchecked stress can lead to physical side effects like trouble concentrating, irritability, a lack of energy, appetite changes, a weakened immune system, and trouble sleeping.
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Examples of blog posts include beauty product recommendations, travel and vacation trip reviews, and personal blog posts.
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The poet's mood changed from that of dismay to joy. He was holding the day in regret when this dust of snow fell on him and this simple little thing brought him some joy.
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Dhwani Panchal 3 years, 2 months ago
1Thank You