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

This particle is found in the nucleus and adds mass to the nucleus. Changing its number also changes what the element is. This particle is the... a. Neutron b.
most of the newly independent countries of the postwar period were located where? A caribbean B africa C southeast asia D latin america answer fast please!!!
Much of the land of Southwest Asia borders _____. A.bodies of water B.mountains and plateaus C.ocean waters D.desert regions
Why are blood cells so far apart, while skin cells are grouped closely together
How could I simplify k+m2−4n−3m2+k ? PS. SHOW YOUR WORK
In 1883, Congress passed the Pendleton Act. What was the goal of this act?
A human geographer would most likely study
I need help dose anyone know it
You borrow $20,000 to buy a boat. the loan is to be paid off in monthly installments over one year at 18 percent interest annually. the first payment is due six
Which is not true of skeletal muscle? which is not true of skeletal muscle? it influences the body's contours and shape. it is one of the major components of ho