Question

If 0° <A< 90° and cos A =4/5
find the values of
(i) cos(90+A)
(ii) tan (360° -A)
(iii) cosec (180° + A)
(iv) sin (270º-A).​

Answer 1

Answer:

$\huge{\underline{\mathtt{\red{❥A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

tan ( 360 ° - A )

is the correct answer dear

Answer 2

Answer:

by PBP/HHB u can find perpendicular,base and hypotenuse

and then by quadrant rule u can find sign of angles

1.3/5

2.-4/3

3.-5/3

4.-4/5