Common questions 

What is formula of sinA sinB?

Joe Ford

What is formula of sinA sinB?

2 sinA sinB = cos(A – B) – cos(A + B)

Is it right to say that sin of a B is equal to sin a sin B justify your answer?

Answer Expert Verified sin (A+B)=sinA+sinB is wrong .

What is the formula of tan AB?

Answer. tan(A + B) = (sin A cos B + cos A sin B) / (cos A cos B − sin A sin B) (50) tan(A + B)

How do you find the sin b of a right triangle?

Solving right triangles Sines: sin A = a/c, sin B = b/c. Cosines: cos A = b/c, cos B = a/c.

How do you do sum and difference formulas?

Introduction: In this lesson, formulas involving the sum and difference of two angles will be defined and applied to the fundamental trig functions. The Lesson: For two angles a and b, we have the following relationships: Sum formulas: sin(a + b) = sin(a)cos(b) + cos(a)sin(b)

Is CSC odd or even?

Cosine and secant are even; sine, tangent, cosecant, and cotangent are odd. Identities can be used to evaluate trigonometric functions.

Can an odd function have a constant?

Yes. The constant function f(x)=0 satisfies both conditions. Hint f is even and odd ⟺f(x)=f(−x)=−f(x)⇒2f(x)=0. This is true if f=0, but may also have other solutions, e.g. f=n in Z/2n= integers mod 2n, where −n≡n.

Is a circle an even or odd function?

Rule1:-Odd functions are always symmetrical with respect to the origin. and even function is symmetrical with respect to y axis. hence,standard equation of circle is always even, it never be odd.

How do you know if F is odd or neither?

You may be asked to “determine algebraically” whether a function is even or odd. To do this, you take the function and plug –x in for x, and then simplify. If you end up with the exact same function that you started with (that is, if f (–x) = f (x), so all of the signs are the same), then the function is even.

How do you tell if a graph is odd or even or neither?

A function with a graph that is symmetric about the origin is called an odd function. Note: A function can be neither even nor odd if it does not exhibit either symmetry. For example, f ( x ) = 2 x \displaystyle f\left(x\right)={2}^{x} f(x)=2x​ is neither even nor odd.

How do you tell if a graph has an even or odd degree?

for all x in the domain of f(x), or odd if, f(−x) = −x, for all x in the domain of f(x), or neither even nor odd if neither of the above are true statements. A kth degree polynomial, p(x), is said to have even degree if k is an even number and odd degree if k is an odd number.