1.Fillupsuitably
a)sin25=cos.......
b)sin48=cos.......
c)sinA =cos.......
d)cos40=sin.......
Answers
Answered by
1
Answer:
There are six trigonometric ratios for the right angle triangle are Sin, Cos, Tan, Cosec, Sec, Cot which stands for Sine, Cosecant, Tangent, Cosecant, Secant respectively. Sin and Cos are basic trigonometric functions that tell about the shape of a right triangle. SO let us see the sin cos formula along with the other important trigonometric ratios.
Sin Cos Formula
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
cos
θ
=
B
a
s
e
/
H
y
p
o
t
e
n
u
s
e
tan
θ
=
P
e
r
p
e
n
d
i
c
u
l
a
r
/
B
a
s
e
csc
θ
=
H
y
p
o
t
e
n
u
s
e
/
P
e
r
p
e
n
d
i
c
u
l
a
r
sec
θ
=
H
y
p
o
t
e
n
u
s
e
/
B
a
s
e
cot
θ
=
B
a
s
e
/
P
e
r
p
e
n
d
i
c
u
l
a
r
Answered by
1
Answer:
a=65
b=42
c=90-A
d=50
Step-by-step explanation:
use( 90-theta )
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