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Mathematics question
Practice Question Solving
Thinzar
September 10, 2023, 1:05pm
1
IMG_1292
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Can someone explain this to me? The answer is E
Juliette
September 10, 2023, 6:10pm
2
hi
using the trigonometry table:
trigonometry-table
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A) (square root 2)/2 + (square root 2)/2 = square root 2
B) 1 + 0 = 1
C) 1 + 0 = 1
D) 0 + 1 = 1
E) -(square root 2)/2 + (square root 2)/2 = 0
with cos(3pi/4) in the second quadrant so it takes a negative value
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