22-05-2019
Mathematics

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Can someone explain these two ?

Can someone explain these two class=

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prosborough198p2ub41 prosborough198p2ub41

22-05-2019

Answer: tan(theta)= sqrt(21)/-2

cos(b)=-5/2

y=sqrt(5^2-(-2)^2)=sqrt(21)

tan(theta)=y/x

tan(theta)=sqrt(21)/-2

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