LHS=2t^2/1-t^2
RHS=2t^2/1-t^2
Hence left had side is equal
Step-by-step explanation:
Taking tan x and sec x in the terms of t=tan(x/2)
tan x=2t/1-t^2
sex x=1/cos x
therefore cos x=1-t^2/1+t^2
so sec x=1/1-t^2/1+t^2
sec x=1+t^2/1-t^2
Taking tan x and sec x in the terms of t=tan(x/2)
tan x=2t/1-t^2
sex x=1/cos x
therefore cos x=1-t^2/1+t^2
so sec x=1/1-t^2/1+t^2
sec x=1+t^2/1-t^2
LHS=tanx .tan(x/2)
=2t.t/1-t^2
=2t^2/1-t^2
RHS=sec x-1
=1+t^2/1-t^2-1
=1+t^2-1+t^2/1-t^2
=2t^2/1-t^2
Therefore hence we proved LHS=RHS
=2t.t/1-t^2
=2t^2/1-t^2
RHS=sec x-1
=1+t^2/1-t^2-1
=1+t^2-1+t^2/1-t^2
=2t^2/1-t^2
Therefore hence we proved LHS=RHS
Answer:
The constant of proportionality k = 11.5.
The equation will be: 
Step-by-step explanation:
If x represents number of hours than y represents miles
We are given:
x y
4 46
5 57.5
6 69
The constant of proportionality can be found using formula: 
Putting values and finding k
x y k ()
4 46 11.5
5 57.5 11.5
6 69 11.5
So, the constant of proportionality k = 11.5
Now, The equation will be:
So, the equation will be:
Answer:
first add the numbers that have the same variable s x7+8x=15x
then the numbers first add and then you subtract
1+7=8
3-8= -5
15x-5
Answer: -4z+4
Step-by-step explanation: You can use math , way for quicker help
Domain: All real numbers or (-infinity, infinity)
Range: [-8, infinity)
