Pls ans very important free points 20 points your mind do it
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Answer:
Step-by-step explanation:
1) cot theta = 3/4
base/perpendicular=3/4
base=3
perpendicular=4
and hypotenuse is 5
sin theta=p/h=4/5
cos theta=b/h=3/5
tan theta=p/b=4/3
cosec theta=5/4
sec theta =5/3
2)cosec=17/8=h/p
p=8
b=15
h=17
sin=8/17
cos=15/17
tan=8/15
sec=17/15
cot=15/8
3)sec=13/12=h/b
p=5
b=12
h=13
sin=5/13
cos=12/13
tan=5/13
cosec=13/5
cot=13/5
5) cosec=17/8=h/p
p=8
b=15
h=17
(1) 2000/2067
(2) 16
Answered by
0
Answer:
y=a sinπ(
2
t
−
4
x
)
Compare this with standard equation, y=A sin 2π(
T
t
−
λ
x
)
where, A= amplitude
λ= wavelength = 4
T= time period = 2
T
1
=
2
1
=0.5
f= frequency
f=
T
1
=0.5
f= 0.5 Hz
Wave velocity, v=f×λ
v=0.5×4=2cm/s
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