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class 11th physics.
ques. :. If A = B - C, then determine the angle between A and B.
Ans. 0 = cos-1 A^2 + B^2 - C^2/
2 AB
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see the attachment for the answer
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shrutijatt:
where do i put the values?
replace the A by its value then B by the value of B and so on
A ka jo value diya hua hai book may ussay A ko replace karo
fir B ka jo value diya hai ussay B ko replace karo equation may
fir waise hi C ko bhi replace karo C k value say jo book may given hai
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