Question

Evaluate sin^2 30+Cosec^2 60-tan^2 45 with clear steps ​

Answer 1

Answer:

Step-by-step explanation:

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 ##