Question

Cos(a-3b) -cos(3a+b)/sin(a+b)+sin(a-3b)=tan(a+2b)​
a. True
b. False

Answer 1

The Pythagorean theorem can be used to calculate the length of the resultant vector obtained from the addition of two vectors at right angles.

Step-by-step explanation:

To determine whether the given statement is true or false, let's consider the Pythagorean theorem. According to the Pythagorean theorem, in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Therefore, if two vectors are at right angles to each other, we can use the Pythagorean theorem to calculate the length of the resultant vector obtained from their addition.

So, the answer is a. True.