Question

25cosx +5cosx = 3
78 cosx -5cosx = 8
2 ctanx +5tanx = 3
2 cosx +5cosx = 5
89 senx +5senx = 3
27cosx +5cosx = 7
-cosx +5cosx = 6
21cosx +5cosx = 9
87cosx +5cosx = -9
Yo sé que es mucho, pero es que soy muy mala en Matematicas
Necesito que me ayuden porfa:(

Answer 1

• 25cosx + 5cosx = 3

30cosx = 3

cosx = 1/10

• 78cosx -5cosx = 8

73cosx = 8

cosx = 8/73

• 2ctanx + 5ctanx = 3

ctanx = 3/7

• 89 senx +5senx = 3

senx = 3/94

• 27cosx +5cosx = 7

cosx = 7/32

• -cosx +5cosx = 6

cosx = 6/4

• 21cosx +5cosx = 9

cosx = 9/26

• 87cosx +5cosx = -9

cosx = -9/92