`sin^2[64]/cos^2[26]=?`

Find the value of sin^(2)64+sin^(2)26

The value of sin^2 64^@+cos64^@ sin26^@+2cos43^@ cosec47^@ is : sin^2 64^@+cos64^@ sin26^@+2cos43^@ cosec47^@ का मान ज्ञात करें ।

Value of sin26^@//cos64^@

Prove that: (cos^2 20° + cos^2 70°)/(sin^2 20° + sin^2 70°) +sin^2 64° + cos 64° sin 26°=2 .

Prove that: (sin A + cos A)/(sin A - cos A) + (sin A - cos A)/(sin A + cos A) = (2)/(sin^(2)A-cos^(2)A)=(2)/(2sin^(2)A-1)=(2)/(1-2 cos^(2)A) .

Prove the following identities: (sin+cos A)/(sin A-cos A)+(sin-cos A)/(sin A+cos A)=(2)/(sin^(2)A-cos^(2)A)=(2)/(2sin^(2)A-1)=(2)/(1-2cos^(2)A)

sin^4A-cos^4A=2sin^2A-1=1-2cos^2A=sin^2A-cos^2A

Show that: sin^(8)A-cos^(8)A=(sin^(2)A-cos^(2)A)(1-2sin^(2)A cos^(2)A)

Show that: sin^(8)A-cos^(8)A=(sin^(2)A-cos^(2)A)(1-2sin^(2)A*cos^(2)A)

Evaluate sin^(2)26^(@)+sin^(2)64^(@) .