middlegirlrule9432 middlegirlrule9432

09-03-2018
Mathematics

contestada

Verify each identity:
(tanx+tany)/(1-tanxtany)=(sinxcosy+cosxsiny)/(cosxcosy-sinxsiny),

Respuesta :

aencabo aencabo

18-03-2018

Solution:
(tanx + tany)/(1-tanxtany) is equal to the formula of tan(x+y)
sinxcosy + cosxsiny = is equal to the formula of sin(x+y)formula
cosxcosy - sinxsiny) = is equal to the formula of cos(x+y)

So this means that
tan(x+y) = sin(x+y)/cos(x+y)

Answer Link

Otras preguntas

To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximu

El arteEstos estudiantes están decepcionados (disappointed) con sus estudios de arte. Escribe oraciones a partir de los elementos dados. Usa el imperfecto de in

Determine the value of(101*99) - (102*98) + (103*97) - (104*96) + ... + (149*51) - (150*50).(without using calculator)

Describe the solar nebula, and outline the sequence of events within the nebula that gave rise to the planetesimals.

How is lifespan development defined? The study of how we grow and change from conception to death. The study of how we grow and change in infancy and childhood.

There is directcorrespondence between the requirement specificationdocumentand the requirementdefinition document.a. Trueb. False

Change 7.23 to percent

what sentences should a teacher write in the report cards to encourage her students ?eg.well done. keep it up.!

Solve −2x − 15 = 6x + 9.

Can someone please solve: Solve log ( 2x + 1 ) – log 6 = 2 for x. Please explain how you arrived at your answer.