Question

vedic maths please tell the answer​

Answer 1

Answer:

Hope it's help you ☺️,,,,,,,,,,,,,

Answer 2

Answer:

$\sf a) \; \sf{\dfrac{15}{28}}$

$\sf{b) \; \dfrac{38}{11}}$

$\sf{c) \; \dfrac{1}{16}}$

$\sf{d) \; a^2 + 2a + 15}$

$\sf{e) -12pq}$

Step-by-step explanation:

$\sf{a) \;\dfrac{4}{14} + \dfrac{3}{12}}$

$\implies \sf{ \dfrac{4 \times 6}{14 \times 6} + \dfrac{3 \times 7}{12 \times 7} }$

$\implies \sf{ \dfrac{24}{84} + \dfrac{21}{84} }$

$\implies \sf{ \dfrac{\cancel{45}}{\cancel{84}}}$

$\implies \underline{\boxed{\pmb{\sf{ \dfrac{15}{28}}}}}$

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$\sf b) \;\sf{4 - \dfrac{6}{11}}$

$\implies \sf{\dfrac{4 \times 11}{1 \times 11} - \dfrac{6}{11}}$

$\implies \sf{\dfrac{44}{11} - \dfrac{6}{11}}$

$\implies \sf{\dfrac{44 - 6}{11}}$

$\implies \underline{\boxed{\pmb{\sf{\dfrac{38}{11}}}}}$

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$\sf{c) \; \dfrac{3}{4} - \dfrac{11}{16}}$

$\implies \sf{\dfrac{3 \times 4}{4 \times 4} - \dfrac{11}{16} }$

$\implies \sf{ \dfrac{12}{16} - \dfrac{11}{16} }$

$\implies \sf{\dfrac{12-11}{16}}$

$\implies \underline{\boxed{\pmb{\sf{\dfrac{1}{16}}}}}$

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$\sf{d) \; (a + 5)(a - 3)}$

$\implies \sf{a^2 + \big[5+(-3) \big]a + 5 \times (-3)}$

$\implies \underline{\boxed{\pmb{\sf{a^2 + 2a + 15}}}}$

   

Formula Used ;;

(x + a)(x + b) = x² + (a + b)x + ab

__________

$\sf{e) \; (3p - 2p)(5p - q)}$

$\implies \sf{3p (5p - q) - 5p(3p - 2p)}$

$\implies \sf{ 15p - 3pq - 15 p - 10pq }$

$\implies \sf{15p - 15p - 3pq - 10pq}$

$\implies \sf{-3pq - 10pq}$

$\implies \underline{\boxed{\pmb{\sf{-12pq}}}}$

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