Als A,B en C de drie hoeken zijn van een driehoek, dan is A.   sin(A + B + C) = cos(A + B + C)
B.   sin(A + B + C) = tan(A + B +C)
C.   sin(A + B + C) = cot(A + B + C)
D.   cos(A + B + C) = tan(A + B + C)
E.   cos(A + B + C) = cot(A + B + C)
A    B    C    D    E 

[ 4-3117 - op net sinds 4.11.12-(E)-24.10.2023 ]

Translation in   E N G L I S H

If A, B and C are the measures
of the three angles of a triangle,
then the following statement is correct :
A.   sin(A+B+C) = cos(A+B+C)
B.   sin(A+B+C) = tan(A+B+C)
C.   sin(A+B+C) = cot(A+B+C)
D.   cos(A+B+C) = tan(A+B+C)
E.   cos(A+B+C) = cot(A+B+C)

Oplossing - Solution

A + B + C = 180°
sin 180° = tan 180°
gricha