nareshkohar5 nareshkohar5
  • 01-08-2021
  • Mathematics
contestada

if sin150=1/2 then find sin75

Respuesta :

truongntq
truongntq truongntq
  • 01-08-2021

Sin75° = Sin(30° + 45°)

= Sin30°.Cos45° + Sin45°.Cos30°

= 1/2 . √2/2 + √2/2.√3/2

= √2/2 ( 1/2 + √3/2 )

= √2/2 ((1+√3 ) /2 )

= (√2 + √6 )/ 4

Answer Link

Otras preguntas

Which expression is equivalent to 10/−9?
Julie printed out a picture of each of the four members of her favorite band to decorate her bedroom door. Each picture measures 4 inches by 6 inches. Once deco
how do i do this? it doesn't make sense
What does the text mean when it says “naming an elements is like creating history
Find the missing number if the average is 7.6 and _____ A) 8 B) 10 C) 12 D) none of the above
Why were civil rights activists suspicious of the blossom plan ? it set a time when desegregation would end . It allowed people to vote on whether they wan
Describe the major e-commerce activities and processes and mechanisms that support them.
A restaurant manager gives a survey to all of his customers asking them to rate the quality of the service they received. He then keeps track of how many custom
Please help asap i will give brainlist!!!!
2/5 10+36-6 ................... HELP PLEASE