basic algebra, group like terms Sin30-Sin1=Sin(30-2)=Sin(28)
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The only trig functions i can think of with horizontal assymptotes are the inverse trig functions. and they go assymptotic for everytime the non-inverse function is equal to zero.
Please don't type "the following" if you don't provide a list.The tan and cot functions have a shorter period than sine and cosine.
It is used in hyperbolic functions; it's the rule to change a normal trig function into hyperbolic trig function. Example: cos(x-y) = cosx cosy + sinx siny Cosh(x-y) = coshx coshy - sinhx sinhy Whenever you have a multiplication of sin, you write the hyperbolic version as sinh but change the sign. also applied when: tanxsinx (sinx)^2 etc... Hope this helps you
Trig identity... sin/cos = tangent
Depends on the person but for me it was pre cal dude