Saturday

December 20, 2014

December 20, 2014

Posted by **Mathlicious** on Wednesday, July 2, 2008 at 5:50pm.

- CALCULUS!!!!! -
**drwls**, Wednesday, July 2, 2008 at 6:35pmCalculate the cross product using the matrix determinant rule. That will tell you the sine of the angle.

The magnitudes of the two vectors are

sqrt(1+9+16) = 5.099 and sqrt(16 + 25 + 16) = 7.550

The cross product is

|i j k |

|1 3 4 |

|4 5 -4 |

= -24 i + 20 j -7 k

The magnitude of the cross product is

sqrt (576 + 400 + 49) = 32.015

sin theta = 32.015 /[(5.099)(7.550)]

= 0.8316

theta = 56.3 degrees

- CALCULUS!!!!! -
**Mathlicious**, Wednesday, July 2, 2008 at 6:40pmwow, thanks so much :) it really helped.

**Answer this Question**

**Related Questions**

calulas and VECTORS - Calculate to the nearest degree, the angle between the ...

Pre Cal/Vectors - Can someone show the steps involved in figuring out this type ...

Calculus - For which following condition, will the dot product of two vectors be...

math - given that vectors(p+2q) and (5p-4q) are orthogonal,if vectors p and q ...

math - given that vectors(p+2q) and (5p-4q) are orthogonal,if vectors p and q ...

math - Find, correct to the nearest degree, the three angles of the triangle ...

Math - Algebraic Vectors - Given the vectors: u = [3, 0] v = [-1, 2] a) Express ...

PreCalculus - Given vectors u=7i + 3j and v = -4i + 3j, find 5u-4v in terms of ...

math - if vectors a+b+c=0 and modulus of the vectors a, b and c are 3 ,5 and 7 ...

math - Two vectors have magnitudes of 3 units and 8 units respectively. The ...