# cos 6 θ=

1.  cos6θ-15 cos4θ sin2θ+20cos2θ sin4θ-5sin6θ

2.  cos6θ-10 cos4θ sin2θ+15cos2θ sin4θ-sin6θ

3.  cos6θ-15 cos4θ sin2θ+15cos2θ sin4θ-sin6θ

4.  cos6θ-10cos4θ sin2θ+10cos2θ sin4θ-sin6θ

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cos6θ-15 cos4θ sin2θ+15cos2θ sin4θ-sin6θ

Explanation :
No Explanation available for this question

# (sin 6θ)/(sin θ)=

1.  32 cos5θ-32 cos3θ+6 cos θ

2.  32 cos5θ-32 cos3θ-6 cos θ

3.  32 cos5θ+32 cos3θ+6 cos θ

4.  32 cos5θ+32 cos3θ-6 cos θ

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32 cos5θ-32 cos3θ+6 cos θ

Explanation :
No Explanation available for this question

# tan 6 θ=

1.  (6tan θ-20tan3 θ-6tan5 θ)/(1-15 tan2 θ+15 tan4 θ- tan6 θ)

2.  (6tan θ-20tan3 θ+6tan5 θ)/(1-15 tan2 θ+15 tan4 θ- tan6 θ)

3.  (6tan θ+20tan3 θ+6tan5 θ)/(1-15 tan2 θ+15 tan4 θ- tan6 θ)

4.  (6tan θ+20tan3 θ+6tan5 θ)/(1+15 tan2 θ+15 tan4 θ+tan6 θ)

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(6tan θ-20tan3 θ+6tan5 θ)/(1-15 tan2 θ+15 tan4 θ- tan6 θ)

Explanation :
No Explanation available for this question

# cot 6θ cotθ=

1.  (cot6 θ-15cot4 θ+15cot2 θ-1)/(6cot5 θ-20cot3 θ+6cot θ)

2.   (cot6 θ-15cot4 θ+15cot2 θ-1)/(6cot4 θ-20cot2 θ+6)

3.  (6cot5 θ-20cot3 θ+6cot θ)/(cot6 θ-15cot4 θ+15cot2 θ-1)

4.  (6cot4 θ-20cot2 θ+6)/(cot6 θ-15cot4 θ+15cot2 θ-1)

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(cot6 θ-15cot4 θ+15cot2 θ-1)/(6cot4 θ-20cot2 θ+6)

Explanation :
No Explanation available for this question

# sin 7θ=

1.  cos7 θ-21cos5 θsin2 θ+35cos3 θsin4 θ-7cos θsin6 θ

2.  sin7 θ-21sin5 θcos2 θ+35sin3 θcos4 θ-7sin θcos6 θ

3.  7cos6 θsin θ-35cos4 θsin3 θ+21cos2 θsin5 θ-sin7 θ

4.  7sin6 θcos θ-35sin4 θcos3 θ+21sin2 θcos6 θ-cos7 θ

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7cos6 θsin θ-35cos4 θsin3 θ+21cos2 θsin5 θ-sin7 θ

Explanation :
No Explanation available for this question

# cot 7 θ=

1.  (cot7 θ-21cot5 θ+35cot3 θ-7cot θ)/(7cot6 θ-35cot4 θ+21cot2 θ-1)

2.  (cot7 θ+21cot5 θ+35cot3 θ+7cot θ)/(7cot6 θ-35cot3 θ+21cot θ-1)

3.  (cot7 θ-21cot5 θ+35cot3 θ-7cot θ)/(7cot6 θ+35cot3 θ+21cot θ+1)

4.  (cot7 θ-21cot5 θ+35cot3 θ-7cot θ)/(7cot6 θ-35cot3 θ+21cot θ-1)

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(cot7 θ-21cot5 θ+35cot3 θ-7cot θ)/(7cot6 θ-35cot4 θ+21cot2 θ-1)

Explanation :
No Explanation available for this question

# tan 8θ=

1.  (8tan θ+56tan3 θ+56tan5 θ-8tan7 θ)/(1-18tan2 θ+70tan4 θ-28tan6 θ+tan8 θ)

2.  (8tan θ+56tan3 θ+56tan5 θ+8tan7 θ)/(1-18tan2 θ+70tan4 θ-28tan6 θ+tan8 θ)

3.  (8tan θ-56tan3 θ+56tan5 θ-8tan7 θ)/(1-28tan2 θ+70tan4 θ-28tan6 θ+tan8 θ)

4.  (8tan θ-56tan3 θ-56tan5 θ-8tan7 θ)/(1-18tan2 θ+70tan4 θ+28tan6 θ+tan8 θ)

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(8tan θ-56tan3 θ+56tan5 θ-8tan7 θ)/(1-28tan2 θ+70tan4 θ-28tan6 θ+tan8 θ)

Explanation :
No Explanation available for this question

# If u=ax+ya then

1.  aylog a,aya+1

2.  -axlog a,ayx-1

3.  aylog a,aya-1

4.  axlog a,aya-1

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axlog a,aya-1

Explanation :
No Explanation available for this question

# If

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# If

1.  1/ |y|(√y2-1)

2.  √(x2-1)/√(y2-1)

3.  √(y2-1)/ √(x2-1)

4.  1/|x|(√x2-1)

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