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What is the distance between $(- 7, \frac{3 π}{4})$ $(-7 ,(3 pi)/4 )$ and $(2, \frac{13 π}{8})$ $(2 , (13 pi )/8 )$ ?

1 Answer

Feb 20, 2016

pl,use the formulaa below

Explanation:

$d = sqrt(( r_1)^2 +( r_2)^2 -2r_1r_2 cos(Φ_2 - Φ_1)$

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