Questions asked by AnnaReen

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How do you write tan(2x) in terms of cot(x)? Thank you!
How do you write sin(4x) in terms of sin(x)? Thank you!
How do you find sin(16x) and cos(4x), if you know that cot(8x) = -2 and 8x is an element of II? Thank you in advance!
In the image below, on which charge can the field be zero? Thank you!
What’s the difference between a p-orbital of the second shell and a p-orbital of the third shell? Thank you!
What's the force on charge Q3? Thank you!
MATRICES: How you determine x and y so that ... ?
MATRICES: For which value of x and y ... ?
MATRICES: Determine a in this matrix so that the matrix is nilpotent with p = 3. ?
Can somebody determine the point between these charges where the electric field force equals to zero? Thank you!
[MATRICES] Determine a so it meets the condition? Thank you!
Two identical negative charges Q are placed on equal distance r of a positive charge Qb (see photo). What is then the value of Q causing the charges (relative to each other) to be in balance? Thank you!
What's the force on charge Q3?
Point P is in the middle of the rectangle. What's the electric field strength in P? Thank you!
The size of the electric field force in A = 150 N/C and in B = 100 N/C. What's the size of the charges Q1 and Q2? Thank you!
For which real x-values lays the graph with equation y = -x^4 + 18x^2 - 17 under the x-axis? Thank you!
For which values of x element of the real numbers lays the graph of the function f with function rule f(x) = 2x^4 + 2x^2 below the graph of the function g with function rule g(x) = 5x^3 + 5x? Thank you!
TRUE OR FALSE; Has #f(x) = 6acx³ + 4bcx² + 9adx + 6bd # two opposite zeros if #c xxd > 0 #? Thank you!
Is plasmolysis always reversible? Thank you!
MATRICES: What's the determinant of this 4x4 matrix?
In what direction do sunspots move? Thank you!
How to make this expression independent from B? thank you!
How to solve this identity? Thank you!
How to solve this identity?
How do you prove that this trangle is isosceles?
How to prove that this triangle is right-angled?
How to solve this identity? Thank you!
How to solve this identity? Thank you!
How to solve this identity? Thank you!
In what organ is pepsin also, besides stomach, made?
In what organ is endopeptidase also, besides stomach, made?
|COMPLEX NUMBERS| Determine the complex conjugate of... ? Thx!
Can somebody solve in C?
|COMPLEXE NUMBERS| Show that...? Thank you!
How to make a formule for sin(3x) and cos(3x) (with the help of De Moivre formulas) in function of sin(x) and cos(x)? Thank you!
|COMPLEXE NUMBERS| Show that?... thank you!
|COMPLEXE NUMBERS| What is the geometrical representation of |z| = 2? Thank you!
|COMPLEXE NUMBERS| What is the geometrical representation of θ = π / 3? Thank you!
(complexe numbers) Show that? Thank you!
Show that the sum of the third roots of 1 is zero? Thank you!
How do you make a mixed circuit with four resistors and at least one series circuit and at least one parallel circuit in? Thank you!
|TRIGONOMETRIC FUNCTIONS| What's the perimeter and area of the hatched region? Thank you!
How to prove that there’s always at least one rational number between two real numbers?
How to determine the current over each resistance? Thank you!
How to determine the voltage Ub2 so that the current through R2 would be equal to 0,150A using Kirchoff's Law? Thank you!
How to solve tanx + cotx = 4cos2x? Thank you
How to solve 3sinx + 3cosx = secx + cosecx for x? Thank you!
How to solve this trigonometric equation: cos(x) * cos(2x) * cos (3x) = 1? Thank you!
How to solve this equation: secx - cosx = sinx? Thank you!
What is the name of this haloalkane? Thank you!
What is the name of this ether? Thank you!
How to find the x in this exponential function? Thank you!
How to convert time? Thank you!
How to express the mass of a proton and an elektron in MeV/c²? Thank you!
Every day, the length of a bug increases with 0,7%. What's the formule to determine the length of the bug after x days? Thank you!
How to prove that the graph of the functions are tangent to eachother.? Also determine the point of tangency? Thank you
Prove: is y = tan(2x), than y" = 4y . y' ? Thank you!t
Prove that the radius of the circle with equation x² + y² = 25 is perpendicular on the tangent line in P(3,4) to the circle? Thank you!
What are the equations of the tangent lines out P(2,1) to the parabola with equation #y = x^2#? Thank you!