Math, asked by aadityasinghalyo30, 10 months ago

19. Find the value of
Cot(20-theta) + Tan(70+theta)/
Sin(70+theta)
x Sin(20-theta)

Answers

Answered by jyotirawat83

0

Answer:

Let cos(20-tetha) remain same..

Let us change Sin(70-tetha)

As we know that...

Sin(90-tetha)=Cos tetha

Sin(70-tetha)=Cos[90-(70+tetha)]

=Cos(20+tetha)

Cos(20-tetha) - Cos(20-tetha) = 0

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