bewellplus.gsu.edu
lele5nnah9ariams lele5nnah9ariams
  • 21-11-2016
  • Mathematics
Answered

Find sin2A if sinA=1/4 and 0<=A<=(pi/2)

Verified Answer :

HomertheGenius
HomertheGenius HomertheGenius
  • 22-11-2016

sin A = 1/4
cos² A = 1 - sin² A
cos² A = 1 - 1/16
cos² A = 15/16
cos A = √15 / 4
-------------------------
sin 2 A = 2 sin A cos A
sin 2 A = 2 · 1/4 · √15 / 4
sin 2 A = √15 / 8

Answer Link

Related Questions

Which sentence contains a pronoun used as an adjective 1She bought the least expensive cage for George the parakeet 2The blue parrot belongs to her 3 One of the
Is salt a solid or liquid
a number t multiplied by 4 is at least 25
What is the tone of sonnet 130
how can u avoid quackery
The spinner is spun 12 times It lands on blue 1 time what is the experimental probability of the spinner landing on blue
What was the effect of increased farming and trade
How many feet are in 84 inches
I need help please please
Which pair of events is dependent You get a head and a tail in two coin tosses with two different coins You get a head and a tail in two coin tosses using the s