Root 3 /sin 20 - 1/cos 20
= (root3 cos 20 - sin 20 )/ (sin 20 cos 20)
(multiplying and dividing by 2)
= 2* (root3/2 cos 20 -1/2 sin 20)/ (sin 20 cos 20)
now sin 20 cos 20 = (2 sin 20 cos 20)/2 = (sin 40)/2
and writing root3/2 = sin 60, 1/2 = cos 60
= 2* (sin 60 cos 20 - cos 60 sin 20)/ (sin 40)/2
= 4* (sin (60-20))/sin 40
= 4* (sin 40)/sin 40
=4
Ask if any doubt in any step :)
Answer:
Step-by-step explanation:
If the zero occur when x={5, -2, -1} then the equation must be
(x-5)(x+2)(x+1) if expansion is desired
(x^2-3x-10)(x+1)
x^3+x^2-3x^2-3x-10x-10
x^3-2x^2-13x-10
Answer:
I know what you mean my grandpa is one
Step-by-step explanation:
I explain everything that could happen to him and that could hurt us if he happened to die. His lungs could give out
lung cancer, coronary heart disease or chronic obstructive pulmonary disease (COPD) are some diseases that he could develop
Y=-3x+5 because the line crosses the y-axis at (0,5) and the slope is -3 because the rise/run saying it goes down 3 and over 1 which can be simplified to -3.
