How do i find sin(1210)
I mean mene 1210 ko break kr ke (180)(6) +130 likha liya but ab remaing 130 ka kya karu?
14 Replies
@Apu
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no
1210 hi hai kya?
haa
sin 2n(180°) = sin(0°)
130 ko sirf 90 + 40°
me break kar sakte hai so kuch ho nahi sakta aage.
is form me hi rakhna padega
Answer has to be -cos40
+cos40 ig
Bhai i was in a hurry back then, its actually sin 50😂😂
We need to find sin1210
And 1210 = 7pie -50
So sin(7pie-50) = sin 50
I hope that am right
So its either sin 50 or sin(90+40) that is equal to -cos 40
@perkysoup
okiee
sin(90+40)= cos40 (sign is according to sin, not cos) am i right?
yes
follow these 3 steps
1 - break down the angle in smaller parts
2- CHANGE THE SIGN ACCORDINGLY
3- decide if the T-function should be changed or not
if you follow in order, every question you do will be correct
sometimes doing step 3 before step 2 may result in wrong answer
Ohh yeah sorry for my minorass mistake, can’t believe that am in 12th😭
Wth