`(7sin^2 30^@ + 3 cosec^2 60^@ - cot^2 45^@ )/(sin^2 70^@+sin^2 20^@)+2sin^2 30^@ -2cos^2 30^@20.`

sin^2 60^@+cos^2 30^@ + cot^2 45^@ + sec^2 60 ^@=?

The value of (sin^2 30^@+ cos^2 60^@+ sec 45^@.sin^2 45^@)/(sec60^@+ cosec 30^@) is : (sin^2 30^@+ cos^2 60^@+ sec 45^@.sin^2 45^@)/ (sec60^@+ cosec 30^@) का मान ज्ञात करें:

Evaluate : sin^2 60^@+ 2tan 45^@-cos^2 30^@

Prove that : cot^2 60^@+ sin^2 45^@+ sin^2 30^@+ cos^2 90^@=13/12 .

Evaluate the following (i) sin 60^@ cos30^@ + sin 30^@ cos 60^@ (ii) 2tan^2 45^@ + cos^2 30^@ - sin^2 60^@ (iii) (cos45^@)/(sec30^@ + c o s e c 30^@) (iv) (sin30^@ + tan45^@ - c o s e c 60^@ )/(sec30^@ + cos60^@ +cot45^@) (v) (5cos^2 60^@ + 4sec^2 30^@ - tan^2 45^@ )/ (sin^2 30^@ + cos^2 30^@ )

Evaluate the following (i) sin 60^@ cos30^@ + sin 30^@ cos 60^@ (ii) 2tan^2 45^@ + cos^2 30^@ - sin^2 60^@ (iii) (cos45^@)/(sec30^@ + c o s e c 30^@) (iv) (sin30^@ + tan45^@ - c o s e c 60^@ )/(sec30^@ + cos60^@ +cot45^@) (v) (5cos^2 60^@ + 4sec^2 30^@ - tan^2 45^@ )/ (sin^2 30^@ + cos^2 30^@ )

The value of (sin 30^@-cos 60^@+ cot^2 45^@)/(cos 30^@-tan 45^@+sin 90^@) is equal to : (sin 30^@-cos 60^@+ cot^2 45^@)/(cos 30^@-tan 45^@+sin 90^@) का मान किसके बराबर है?

The numerical value of ( cos^2 45^@ ) /( sin ^2 60 ^@) +( cos ^2 60^@ )/( sin ^2 45 ^@ ) -(tan ^2 30 ^@ )/( cot^2 45^@ ) -( sin^2 30 ^@ )/( cot^2 30^@) is

The value of (sin^2 30^@+ cos^2 60^@- sec 35^@.sin^2 55^@)/(sec60^@+ cosec 30^@) is equal to: (sin^2 30^@+ cos^2 60^@- sec 35^@.sin^2 55^@)/(sec60^@+ cosec 30^@) का मान क्या होगा ?