hamood9654 hamood9654
  • 04-07-2017
  • Mathematics
contestada


If cos(t)=-9/10 where pi < t < 3pi/2, find the values of the following trigonometric functions.

cos(2t)=
sin(2t)=
sin(t/2)=
cos(t/2)=

Respuesta :

ghanami
ghanami ghanami
  • 09-07-2017
hello here is a solution : 
Ver imagen ghanami
Answer Link

Otras preguntas

Which substance is an Arrhenius acid? (1) LiF(aq) (3) Mg(OH)2(aq) (2) HBr(aq) (4) CH3CHO
Which compound is soluble in water?(1) PbS (3) Na2S(2) BaS (4) Fe2S3
Compare the Sepoy Rebellion in India and the Boxer Rebellion in China.
what is an equivalent decimal to 9/15
how do u simplify this expression 6-7n-2n-8
What is the approximate circumference of a circle with a radius of 20 inches? Use π ≈ 3.14. A. 125.6 inches B. 62.8 inches C. 251.2 inches D. 120 inches
What was a major result in the Civil War?
"Susan wants to buy a paddle boat for $840. She will pay 20% down and pay rest in six montly installments. How much will her monthly installments be?"
A balanced equation representing a chemical reaction can be written using (1) chemical formulas and mass numbers (2) chemical formulas and coefficients (3) firs
Which of these elements is the best conductor of electricity? (1) S (3) Br (2) N (4) Ni