Math, asked by harshkumarlakhotra54, 9 months ago

1 point
The value of
cot 54°
tan 20°
+
tan 36° cot 70°
is :
(А) 0
ОО
О(В) 2
О
(C) З
О
(D) 1

Answers

Answered by gugulothsharada77

2

Answer:

A)0

Step-by-step explanation:

tan(90-x)=cot(x)

so cot54/tan36=cot54/cot54=1

=tan20/cot70=1

so 1+1-2=0

hence proved

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