Sin(3x + 10) = cos (x)

In general cos x = cos a has solutions x = ±a + 360°k, integer k

sin(3x + 10) = cos x

Assuming that's 10°

cos(90 - (3x+10)) = cos x

cos(80 - 3x) = cos x

80 - 3x = ±x + 360°k

Plus first,

80-3x = x + 360°k

-4x = -80 +  360°k

x =20° - 90°k

Minus next,

80 - 3x = -x + 360°k

-2x = -80 + 360°k

x = 40° - 180°k

k runs over all the integers so we can flip the sign.

x = 20° + 90°k or x = 40° + 180°k, integer k

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

black/brown

step-by-step explanation:

well, you see here, jamal was born to 2 parents, his mother who he lives with and his father who left at a young age and who happens to be younger than him. he stole cookies because he has to steal food due to the fact that he spends his government poverty checks on pot and women.