.) 8. sin“ cos4 0 = sin? 0 - cos? 0.
Answers
Answered by
0
Step-by-step explanation:
Correct option is
B
2
1
sinθ−cosθ=0
sinθ=cosθ
cosθ
sinθ
=1
tanθ=1
We know that tan
45=1
˚
so,θ=
45
˚
(sin
4
θ+cos
4
θ)
(sin
4
45
˚
+cos
4
45
˚
) ={(
2
1
)
4
+(
2
1
)
4
}
={
4
1
+
4
1
}
=
4
2
=
2
1
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