Math, asked by Umema20, 9 months ago

plz explain the steps

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Answers

Answered by selvamgurudev2011

1

Step-by-step explanation:

R=✓(10)2+(-10)2+2(10)(-10)cos60

cos60=1/2

✓(10)2+(-10)2cancelled

✓2(10)-10=✓-200×1/2

✓-100 =10dyne.

hope it is useful

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