Question

write a trigonometry formals with example

Answer 1

sin@=altitude/hypotenuse
cos@=base/hypotenuse
tan@=altitude/base
cot@=base/altitude
sec@=hypotenuse/base
cosec@=hypotenuse/altitude

identities:
sin@=1/cosec@
cos@=1/sec@
tan@=1/cot@
so,
sin@×cosec@=1
cos@×sec@=1
tan@×cot@=1