cot(135°) -Tan(135°) =2 prove lhs equals to rhs
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Answered by
9
Step-by-step explanation:
Given that:-
Cot 135°- Tan 135°
=>Cot (90°+45°)-(Tan(90°+45°)
We know that
Cot(90°+A)= - Tan A
Tan(90°+A) =- Cot A
=>- Tan 45°-(- Cot 45°)
=>-1-(-1)
=>-1+1
=>0
Cot 135°+Tan 135°
=>Cot (90°+45°)-(Tan(90°+45°)
We know that
Cot(90°+A)= -Tan A
Tan(90°+A) =-Cot A
=>- Tan 45°+(-Cot 45°)
=>-1+(-1)
=>-1-1
=>-2
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Answer:
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