Answers and working out are in the picture
Answer:
C=pid
Step-by-step explanation:
The three main trig functions are sine (written as sin), cosine (written as cos), and tangent (written as tan).
Sine of an angle = the length of the side opposite (aka across) the angle / the length of the hypotenuse
Cosine of an angle = the length of the side adjacent (aka the side next to which isn't the hypotenuse) to the angle / the length of the hypotenuse
Tangent of an angle = the length of the side opposite of the angle / the length of the side adjacent to the angle.
The acronym to remember this is SOHCAHTOA
SOH | CAH | TOA
SOH means sin(x) = opposite/hypotenuse
CAH means cos(x) = adjacent/hypotenuse
TOA means tan(x)= opposite/adjacent
cosB = length of adjacent side/length of hypotenuse = 7/25
tanB = length of opposite/length of adjacent = 24/7
sinB = length of opposite/length of hypotenuse = 24/25
Answer:
<em>− 2sin(b) / cos(2b)</em>
Step-by-step explanation:
DIFFERENTIATE W.R.T. B is a different method entirely
We simply add together the numerators and set with 2cos
then keep this number and add to sinb and square it.
then repeat initial 2 + cosb ^2 but instead of multiplying its add.
Then set the whole division to -sin (2b) squared then +1
<em> − 2cos(b)(3(sin(b))^2+(cos(b))^2) / −(sin(2b)) ^2 +1 </em>
Answer:
50 cm^2
Step-by-step explanation:
The volume of a square pyramid can be found using:
v= 1/3 bh
Where b is the area of the base, and h is the height
First, we have to find the area of the base
a=l*w
In a square, all sides are equal, so we know the length and the width are both 5
a=5*5
a=25
Now, we can substitute 25 in for b, and 6 in for h
v=1/3bh
v=1/3(25*6)
v=1/3(150)
v=50
Volume uses units cubed, and in this case our units are centimeters
The volume is 50 cm^3