Computer Science homework help
Computer Science homework help. Samina – the first in an inverse trig function while the latter is reciprocal of ##cos(x)##
The argument “x” for ##cos^-1(x)## will always be the ratio of adjacent over hypotenuse. For example:
##cos^-1(1/2)= 60^o##
In other words for a right triangle, ##cos(60^o)=1/2## so the inverse of this is simply ##cos^-1(1/2)= 60^o##
For the latter using the same example, ##1/cos(x)##:
##1/cos(60^o)=1/(1/2)= 2=sec(60)##
Hope that helped
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