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

Which responsibility applies ONLY to men?

WILL GIVE A BRAINLEST How many essential amino acids must be obtained from food? 20 26 8 12

What constitutional principle is the electoral college a demonstration of?

A mother is convinced by her son that he should have a weekly allowance that is doubled every 2 weeks. In weeks 1 and 2 he receives 10¢ per week; in weeks 3 and

What is the mass of 1 l of water? what is its weight in newtons?

Where is the source of the Rhine River?

Quien pinto el cuadro el retorno a egipto

What is the sum of the two missing terms in this equation? (m + 3)(m – 1) = m2 + ____ + ____ – 3 A) m B) 3m C) 4m D) 2m

Please help me get this answer right

Hot dogs are sold in packages of 8, and hot dog buns are sold in packages of 12. What is the smallest number of each that could be purchased so that the custome