2. Which of the following statement is true
a) sind = tan (90 – 0)
b) coso = sin (90 – 0)
c) sind = cosec (90 - 0)
d) tand tan (90 – 0)
Answers
Answered by
1
Answer:
Correct option is
B
2
sin(90
o
−θ)=cosθ;cos(90
o
−θ)=sinθ
sin27
o
=sin(90
o
−63
o
)=cos63
o
cos40
o
=cos(90
o
−50
o
)=sin50
o
∴Givenexp.
=
sinθ
sinθ.cosθ.cosθ
+
cosθ
cosθ.sinθsinθ
+
(sin
2
50
o
+cos
2
50
o
)
(cos
2
63
o
+sin
2
63
o
)
=cos
2
θ+sin
2
θ+
1
1
=1+1=2
Answered by
0
Step-by-step explanation:
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