Question

evaluate :sin 63,cos 27 - sec 44, cosec46​

Answer 1

Answer:

$= \sin(63) \times \cos(27) - \sec(44) \times \csc(46) \\ = \sin(63) \times \sin(90 - 27) - \csc(90 - 44) \times \csc(44) \\ = \sin(63) \times \sin(63) - \csc(46) \times \csc(46) \\ = { \sin(63) }^{2} - { \csc(46) }^{2} \\ = - 1.13866$