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rind y 2. em (8) F Find x and y (9) F nd.Y e- Page 7 of S9
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Find y by pythagoras theorem y (42 22)A0.5 3.464 cm Find x and y y Hcos 4.7cos60 2.35cm x Hsin@4.7sin60 4.07cm Find xY. e- similarly y 3.6cos35 2.95 x 3.6sin35 2.065cm cos@ x/H 0.574; @ 55 deg e- (10) Fina x.H. cos50 2.5/H;H 3.89cm sin a 2.5/H sin a 2.5/3.89 0.643 ; a 40 deg x Hcosa 3.89cos40 2.5cm

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