from vector calculus
que. no. 31,35,36
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31) r = a cos ¶ t + bsin¶t
dr/dt = - a¶ sin¶t + b¶ cos qt
r× dr/dt = ¶ cos^2 qt ( a×b) - q sin^2¶t ( b × a)
= q cos^2 qt ( a× b) + q sin^2 qt ( a×b)
= q ( a×b)
So its (c)
wait I will tell u 35 and 36 by doing in copy
its taking time while typing
dr/dt = - a¶ sin¶t + b¶ cos qt
r× dr/dt = ¶ cos^2 qt ( a×b) - q sin^2¶t ( b × a)
= q cos^2 qt ( a× b) + q sin^2 qt ( a×b)
= q ( a×b)
So its (c)
wait I will tell u 35 and 36 by doing in copy
its taking time while typing
shiibanii:
3rd step me cross product kaise aaya hai bhai smj nhi aaya cross product
cross product ka result explain kr dijiye please
ok thanks
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