Question

22) If 3 cotAtan A = 1, then 2 sin A cos A=1 ​

Answer 1

Step-by-step explanation:

If sinA+cosA=1, then sin2A=

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If sinA+sin

2

A=1 then show that cos

4

A+cos

2

A=1

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If cot A=

16

17

evaluate

(1+cosA)(1−cosA)

(1+sinA)(1−sinA)

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If (

1−2sinA

3

+2cosA

)

−3

+(

3

−2cosA

1+2sinA

)

−3

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Prove that :

1−sinA

cosA

+

1−cosA

sinA

+1=

(1−sinA)(1−cosA)

sinAcosA