What is the minimum value of `4 cosec^2 alpha+9 sina^2 alpha?`

What is the minimum value of 4cosec^(2)alpha+9sin^(2)alpha ?

If 0^@<(alpha)<90^@ , then find the minimum value of 4cosec^2 (alpha)+9 sin^2 (alpha)

The minimum value of sec^2alpha+cos^2alpha is

What is the value of (sin^4alpha-cos^4 alpha+1)cosec^2 alpha .

If 10sin^4 alpha+15 cos^4 alpha=6, then find the value of 27 cosec^6 alpha+8sec^6 alpha.

If 10 sin^4 alpha+15 cos^4 alpha=6 , find the value of 27 cosec^6 alpha+ 8 sec^6 alpha .

If tan alpha=2 , then the value of (cosec^2 alpha-sec^2 alpha)/(cosec^2 alpha+sec^2 alpha) is यदि tan alpha=2 है, तो (cosec^2 alpha-sec^2 alpha)/(cosec^2 alpha+sec^2 alpha) का मान ज्ञात करें।

If 10sin^4 alpha +15cos^4alpha=6 then the value of 9cosec^4 alpha + 8 sec^4 alpha-75 is

If 15 sin^(4) alpha+10 cos^(4) alpha=6 , some alpha in R , then the value of 27 sec^(6) alpha+8 cosec^(6) alpha is equal to

tanalpha=2 , then the value of ("cosec"^(2)alpha-sec^(2)alpha)/("cosec"^(2)alpha+sec^(2)alpha) is