Ahmed lost Rs 20 by selling a football for Rs 380. what was the loss and loss percent
1 answer:
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7π/12 lies in the second quadrant, so we expect cos(7π/12) to be negative.
Recall that
which tells us
Now,
and so
7π/12 lies in the second quadrant, so we expect cos(7π/12) to be negative.
Recall that
which tells us
Now,
and so