\sum _{{ i = 4 }} ^{{ 7 } }\sqrt { 2 i - 1 } can be written as:

\sqrt { 7 } +\sqrt { 9 } + \sqrt{ 11 } + \sqrt{ 13 }

2\sqrt { 7 } + 2 \sqrt { 9 } + 2 \sqrt { 11 } + 2 \sqrt { 13 }

2 \sqrt{ 7 } + 2 \sqrt{ 9 } + 2 \sqrt { 11 } + 2 \sqrt{ 13 }

CA CPT Model Test Paper 11 with solutions for online practice

Question : 151 of 200

Marks: +1, -0

∑ ↙{{ i = 4 }} ↖{{ 7 } }√ { 2 i - 1 }

can be written as:

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