Question

guys please solve this
find the values without using trigonometrical tables
(cos 0° + sin 45° + sin 30°) (sin 90° - cos 45° + cos 60°)
​

Answer 1

Step-by-step explanation:

(cos 0° + sin 45° + sin 30°) (sin 90° - cos 45° + cos 60°)

= (1 + 1/√2 + 1/2)(1-1/√2+1/2)

= (1+1/2)^2 - (1/2)^2

= 9/4 - 1/4

= 2

Answer 2

Answer:

hi army sorry for the spam

purple u too

I'm Clara, 13 age 8 standard

and from Meghalaya

what about you

well for rajveer oppa

his Id is army 73514 (old account)

another army 73514(new account) only for spamming.........xd

because these moderator are so bad he wanted to take revenge...

you can see in my following list