Question
iment No Date
( left(frac{1}{3.5}+frac{1}{5.7}+frac{1}{7.9}+frac{1}{9.11}+frac{1}{11.13}+frac{1}{13.13}right) )
( frac{1}{2}left(frac{2}{3 cdot 5}+frac{2}{5.7}+frac{2}{7.9}+frac{2}{9.11}+frac{2}{11.13}+frac{2}{13.15}right) )
( Rightarrow frac{1}{2}left[frac{(5-3)}{3.5}+frac{(7-5)}{5.7}-frac{(15-13)}{13.15}right] )
( frac{1}{2}left(frac{1}{3}-frac{1}{5}right)+left(frac{1}{5}-frac{1}{7}right)+left(frac{1}{4}-frac{1}{15}right) )
( =frac{1}{2}left[frac{1}{3}-frac{1}{15}right]=frac{1}{2}left[frac{4}{15}right]=frac{2}{15} )

= ਨਾ. ਝੰਡ ' ' ਚ ' ' ਤੇ ' 13) बराबर है। (1) | ਸਮਝ ਸਰਲ (2) |
Solution
