Yes, two thirds is equivelant to four sixths.
Yes?
no
They are a lot like you and me (normal Americans). They probably have a bigger tan though.
Yes a half is bigger tan a tenth. A half =50% and a tenth =10%
No! 1kg=1000g
The calculators have been programmed in such a way that they are able to calculate sin, cos and tan without the side lengths.
A=(5t2 tan(54o) )/ 4
Yes, it does. For an angle greater than 45 degrees (and less than 90), TAN will be more than 1. TAN of 50 is about 1.19.
Amy Tan is 65 years old (birthdate: February 19, 1952).
tan(9) + tan(81) - tan(27) - tan(63) = 4
Tan Tan
This may not be the most efficient method but ... Let the three angle be A, B and C. Then note that A + B + C = 20+32+38 = 90 so that C = 90-A+B. Therefore, sin(C) = sin[(90-(A+B) = cos(A+B) and cos(C) = cos[(90-(A+B) = sin(A+B). So that tan(C) = sin(C)/cos(C) = cos(A+B) / sin(A+B) = cot(A+B) Now, tan(A+B) = [tan(A)+tan(B)] / [1- tan(A)*tan(B)] so cot(A+B) = [1- tan(A)*tan(B)] / [tan(A)+tan(B)] The given expressin is tan(A)*tan(B) + tan(B)*tan(C) + tan(C)*tan(A) = tan(A)*tan(B) + [tan(B) + tan(A)]*cot(A+B) substituting for cot(A+B) gives = tan(A)*tan(B) + [tan(B) + tan(A)]*[1- tan(A)*tan(B)]/[tan(A)+tan(B)] cancelling [tan(B) + tan(A)] and [tan(A) + tan(B)], which are equal, in the second expression. = tan(A)*tan(B) + [1- tan(A)*tan(B)] = 1