Posted by Name on Sunday, December 5, 2010 at 11:15am.
if the angle between the two lines 3x5y1=0 and Kxy=3 is 45, then find the value of k

Math  Henry, Monday, December 6, 2010 at 8:42pm
m1 = tanA = 3 /5 = 0.6,
tanA = 0.6,
A = 31 deg.
B = 31 + 45 = 76 deg.
m2 = tanB,
m2 = tan76 = 4.0
m2 = K / 1 = 4,
K / 1 = 4,
Cross multiply:
K =  4,
K = 4.
Answer This Question
Related Questions
 Geometry  If two non parallel lines are perpendicular to two other straight ...
 maths geometry  Find and write down a proof that the product of the gradients ...
 math  The CN Tower in Toronto, Canada, is the tallest freestanding structure ...
 Trigonometry  Cosine of angle  What is the cosine of the angle between two ...
 Math  The CN Tower in Toronto, Canada, is the tallest freestanding structure ...
 maths  If two non parallel lines are perpendicular to other two non parallel ...
 Math Quadratics Help!  I have a test tomorrow with a few sample questions that...
 Math  How would I figure this problem out? "To rotate a figure 150 degrees you ...
 Math  Quadratics & Analytical Geometry  I have a test tomorrow with a few ...
 PreCalc  The CN Tower in Toronto, Canada, is the tallest freestanding ...
More Related Questions