Registro
Ingresar
Nombre de usuario
Contraseña
Ingresar
olvidó su contraseña
Inicio
Foro
+0
Formulario
Matemáticas
Ayuda
números complejos
cálculo diferencial
cálculo diferencial
Ecuaciones
Gráficas de funciones
Algebra lineal
Teoría de números
pourcentages
Fonctions estándar
Probabilidad
Trigonometría
Conversión de unidades
Unidades
Sobre
Impreso
Política de privacidad
Términos de Servicio
Credits
Google+
Facebook
Email de contacto
LearningCat
Nombre de usuario
LearningCat
Puntuación
48
Membership
Stats
Preguntas
8
Respuestas
3
11 Questions
3 Answers
0
1
1
+48
Preclac
Let x and y be two perpendicular unit vectors.
(a) Find a formula for the magnitude of an arbitrary linear combination ax+by
of x and y in terms of a and b.
(b) Find the precise condition on a,b,c and d under which the linear combinations
lee mas ..
●
LearningCat
14 may 2024
0
2
2
+48
Precalculus
Help please :3
●
●
LearningCat
14 may 2024
0
2
2
+48
Precalculus help
Then what is vector AB? Help :3
●
●
LearningCat
14 may 2024
0
2
1
+48
Precalc help
Let u and v be vectors such that ||u||=3 and ||v||=2 such that the angle between u and v when placed tail to tail is 60 degrees.
Let A be a matrix such that row_1(A)=u and row_2(A)=v.
Then what are Au, Av in that order? (Your answers
lee mas ..
MaxWong
●
LearningCat
14 may 2024
0
2
3
+48
Precalc
Let a and b be two vectors such that neither of a-b and a+b is the zero vector.
(a) Prove that if the vectors a and b are of equal length, then a-b and a+b are perpendicular.
(b) Prove that if a-b and a+b are perpendicular, then a and b are
lee mas ..
●
●
●
LearningCat
7 may 2024
-1
14
1
+48
Trig help
Find constants a, b, c, d and e such that cos4x=a(sin^4)x+b(sin^3)x+c(sin^2)x+d(sin)x+e for all angles x. In other words, write cos(4x) as a polynomial in sin(x).
●
LearningCat
27 feb 2024
0
13
1
+48
Trig question help
Point is the terminal point of angle theta. Points Q, R, and S and are other terminal points.
List the points P,Q,R, and S and in
lee mas ..
●
LearningCat
13 feb 2024
+1
4
3
+48
Trig question
For how many values of such that do we have ? (Note that is a measure in radians, not degrees!)
●
●
●
LearningCat
6 feb 2024
0
20
1
+48
help :3
In square ABCD, P is on BC such that BP=4 and PC=1, and Q is on CD such that DQ=4 and QC=1. Find sin of angle PAQ.
●
LearningCat
31 oct 2023
0
18
1
+48
Geometry :3
In traingle ABC, point X is on side BC such that AX=13, BX=10, and CX=4, and the circumcircles of triangles ABX and ACX have the same radius. Find the area of triangle ABC.
●
LearningCat
28 oct 2023
0
22
1
+48
geometry problem halp :3
Let R be the circle centered at (0,0) with radius 10. The lines x=6 and y=4 divide R into four regions R1, R2, R3 , and R4. Let R_i denote the area of region R_i If R1>R2>R3>R4,
then find R1-R2-R
lee mas ..
●
LearningCat
28 oct 2023
«
último
0
-1
2
último
»
#2
+48
0
Could you show me how you got that?
LearningCat
14 may 2024
#2
+48
+1
How did you get a = ( 0, m) and b = (m , 0). Why the 0?
LearningCat
7 may 2024