Answer the 8th question please with steps
Option :
A) 0
B) 1
C) 1/2
D) 2
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Answers
Answered by
0
the ans is b means 1
let sin45 = 1/root2
sin2 45 = 1/2
cos 2 45 =1/2
1-1/2=1/2
in root 1/2÷1/2
1/2×2/1
2/2
1
in root 1 =1
let sin45 = 1/root2
sin2 45 = 1/2
cos 2 45 =1/2
1-1/2=1/2
in root 1/2÷1/2
1/2×2/1
2/2
1
in root 1 =1
bhupesh99:
next denominator
1-cos2 90 = 1-(0)^2 = 1-0 = 1
so 1/2/1 = 1/2
understood?
it is sin square
cos square
not 2sin theta
which answer are u talking about?
im talking about 7th sum
8 th sum
Answered by
3
ok
hope this helps you
hope this helps you
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we can also say
cot 45 / sin 45
cos 45 by sin 45
is cot 45
means cot square 45
so cot 45 is 1
and 1 square is 1
stop these comments
why
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