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Pls solve this numerical.​
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3 votes
Pls solve this numerical.​

Pls solve this numerical.​-example-1
User Joe Bloggos
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1 Answer

5 votes

Answer:


{ \rmA} \\ { \rm{A.B = 5 * 7 * \sin(45) }} \\ { \rm{A.B = 35 * (1)/( √(2) ) }} \\ \\ { \rm{A.B = (35)/( √(2) ) }}

rationalise the denominator;


{ \rm{A.B = (35)/( √(2) ) * ( √(2) )/( √(2) ) }} \\ \\ { \rm{A.B = (35 √(2) )/(2) }}

User Belek
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