riri45
riri45 riri45
  • 03-02-2018
  • Mathematics
contestada

prove that siny tany +cosy=secy

Respuesta :

annastasia
annastasia annastasia
  • 03-02-2018
sinu x siny/cosy + cosy

= (sin^2 y + cos^2 y)/cosy

= 1/cosy

= secy
Answer Link

Otras preguntas

A vehicle is only 15% efficient. What happened to the other 85%?
why is the square root of a perfect square always rational
what rule does static electricity follow
Sophia bought 3 yards of trim to put around a rectangular scarf. She wants the width of the scarf to be a whole number that is at least 6 inches and at most 12
Please help with Algebra 1
A tabletop in the shape of a trapezoid has an area of 6,550 square centimeters. Its longer base measures 115 centimeters and the shorter base is 85 centimeters.
the volume of a rectangle prism with square bases is 5880 cubic inches. it has a height of 30 inches. find the side length of the square base.
What is the range of function of y-1=(x+3)^2
What are the factors of 6x + 24?
what rule does static electricity follow