SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________ 1/8 1/16 1/32 1/64 PLZZ GIVE SMALL SOLN ACCORDING TO JEE

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SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________ ​ ​ 1/8 1/16 1/32 1/64 PLZZ GIVE SMALL SOLN ACCORDING TO JEE

Saurabh Koranglekar · Answer

combine first and last term then 2 nd and 2 nd last term and so on and use sin(A)* sin(B) = (0.5)*((cos A+B)-cos(A-B))

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SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________ 1/8 1/16 1/32 1/64 PLZZ GIVE SMALL SOLN ACCORDING TO JEE

_{SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________}

_1/8

_1/16

_1/32

_1/64
_{PLZZ GIVE SMALL SOLN ACCORDING TO JEE}

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SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________ ​ ​ 1/8 1/16 1/32 1/64 PLZZ GIVE SMALL SOLN ACCORDING TO JEE

SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________​​ 1/8 1/16 1/32 1/64PLZZ GIVE SMALL SOLN ACCORDING TO JEE

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SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________ 1/8 1/16 1/32 1/64 PLZZ GIVE SMALL SOLN ACCORDING TO JEE

_{SIN PI /14 X SIN 3 PI / 14 X SIN5PI/14 X SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________}

_1/8

_1/16

_1/32

_1/64
_{PLZZ GIVE SMALL SOLN ACCORDING TO JEE}