Answer: multiply by 3
Step-by-step explanation:
I know this because the relation ship applies to all of the number, for example 3 x 3 = 9 and so on.
For every negative number, you multiply that number by two, and then negative one.
For example: -5*2= -10. -10*-1=10.
5 x10^2 or five times ten to the second power
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
