sin a divided by cot A + Cos A equal to 2 + sin a cot a minus secant
Answers
Answer:
sin(π/2−
θ
) =
cos
θ
cos(π/2−
θ
) =
sin
θ
tan(π/2−
θ
) =
cot
θ
cot(π/2−
θ
) =
tan
θ
sec(π/2−
θ
) = cosec
θ
cosec(π/2−
θ
) =
sec
θ
Step-by-step explanation:
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Exams » K12 » Trigonometry Formulas & Identities: Complete List Of Trigonometric Formulas (Class 10 To 12)
Written byPRITAM G | 20-07-2020 | 0 COMMENTS
Trigonometry Formulas & Identities: Complete List Of Trigonometric Formulas (Class 10 To 12)
Trigonometry Formulas
Trigonometry Formulas: Trigonometry is the branch of mathematics that deals with the relationship between the sides and angles of a triangle. There are many interesting applications of Trigonometry that one can try out in their day-to-day lives. For example, if you are on the terrace of a tall building of known height and you see a post box on the other side of the road, you can easily calculate the width of the road using trigonometry formulas.
Of course, you need to have an understanding of the various relationships between the sides of the triangle formed by joining the three points – you, the foot of the building, and the post box, and the angles between the sides of the triangle thus formed. You need to know the various trigonometry formulas and what they mean.
Trigonometry has immense applications in construction, flight engineering, criminology, marine biology, engineering, and tons of other branches. Students are usually introduced to the basics of Trigonometry in high school (Class 9 or Class 10). Then, they are moved into the more complex concepts covered in Class 11 and Class 12. To ensure you don’t get confused with its elements, we will provide you with the complete list of Trigonometry Formulas for Class 10, Class 11, and Class 12.
KNOW EVERYTHING ABOUT TRIGONOMETRIC RATIOS HERE
Trigonometry Formulas For Class 10, 11 & 12
Let us consider the following right-angled triangle:
As you can see, the three sides of the triangle are:
a. Base: The side that is horizontal to the plane.
b. Perpendicular: The side making an angle of 90 degree with the Base.
c. Hypotenuse: The longest side of the triangle.
Also,
θ
is the angle made by Hypotenuse and Base.
Then,
sine of angle
θ
=
sin
θ
=
P
e
r
p
e
n
d
i
c
u
l
a
r
H
y
p
o
t
e
n
u
s
e
cosine of angle
θ
=
cos
θ
=
B
a
s
e
H
y
p
o
t
e
n
u
s
e
tangent of angle
θ
=
tan
θ
=
P
e
r
p
e
n
d
i
c
u
l
a
r
B
a
s
e
cotangent of angle
θ
=
cot
θ
=
B
a
s
e
P
e
r
p
e
n
d
i
c
u
l
a
r
cosecant of angle
θ
=
c
o
s
e
c
θ
=
H
y
p
o
t
e
n
u
s
e
P
e
r
p
e
n
d
i
c
u
l
a
r
secant of angle
θ
=
sec
θ
=
H
y
p
o
t
e
n
u
s
e
B
a
s
e
Note that, sine, cosine, tangent, cotangent, cosecant, and secant are called Trigonometric Functions that defines the relationship between the sides and angles of the triangle.