Theninja888
Theninja888 Theninja888
  • 17-06-2016
  • Mathematics
contestada

Verify the identity. (7 points)

cos quantity x plus pi divided by two = -sin x

Respuesta :

jhonyy9
jhonyy9 jhonyy9
  • 17-06-2016
do you think 

cos(x + pi/2) = -sin x    ? 

so hopw you learned about formula cos(a+b) = ?
Answer Link

Otras preguntas

I made my mom mad XD any tips on how to make her not mad at me anymore
Joaquin has written an argument essay claiming that all skateboards should be sold with protective gear. What does he need to include in his essay to support hi
why do societies need art and creativity to survive
Should Delaware change the driving age? ​
While using a bag-valve-mask to ventilate an unconscious patient, an EMS provider inadvertently forgets to insert an oral airway adjunct. What potential complic
Each exterior angle in a regular polygon has a measure of 18. How many sides does the polygon have? What is the sum of the measures of the interior angles?
Equation 2 T . X - Show 2(4k + 3) - 13 = 2(18 – k) - 13
There has been a mix-up in the lab, and you have been asked to decipher which vial of cell-free extract is from which experiment: one on glycolysis, one on the
supose 10 atoms of carbon (c) recat with 20 atoms of oxegen (o) to from 10 molecules of carbon dioxide (co2). According to the law of conservation of matter, ho
Eseu argumentativ despre importanta modelelor in viata unui adolescent?