Question

sin^2 60°+tan^2 45° - cosec^2 30°

Answer 1

this is the answer for your question= -9/4

Answer 2

hello users ........

we have to find:-
Sin² 60°+tan² 45° - cosec² 30° = ?

solution:-
we know that :
sin 60° = √3 / 2  ; tan 45° = 1 ; cosec 30° = 2

now, 
here,
Sin² 60°+tan² 45° - cosec² 30°
= (√3 / 2 )² + 1² - 2² 
= 3 / 4 + 1 - 4 
= (3 + 4 - 16) / 4    (taking LCM)
= -9 / 4 answer 

## hope it helps ##