cot2 30 degree -2nd cos2 60 degree-*3/4 sec 2 45 degree-4 sin2 30 degree
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1
Answer:
Now,
cot
2
30
o
−2cos
2
60
o
−
4
3
sec
2
45
o
−sin
2
30
o
=(
3
)
2
−2×
2
2
1
−
4
3
×(
2
)
2
−
2
2
1
=3−
2
1
−
2
3
−
4
1
=3−2−
4
1
=1−
4
1
=
4
3
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