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cos 2x= cos 60^(@) cos 30^(@) + sin 60^(...

cos 2x= cos 60^(@) cos 30^(@) + sin 60^(@) sin 30^(@) समीकरण में xका मान ज्ञात करो । | 10 | त्र...

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Evaluate : cos60^(@)cos30^(@)+ sin 60^(@)sin30^(@)

If cos 2x = cos 60^(@) cos 30^(@) + sin 60^(@) sin 30^(@), then the value of x is

"(1) "sin60^(@)cos30^(@)+sin30^(@)cos60^(@)

sin60^(@).cos30^(@)+cos30^(@)*sin60^(@)

Evalutate : sin60^(@) cos 30^(@)+sin30^(@)cos 30^(@) .

The value cos 30^@.cos 60^@ - sin 30^@.sin 60^@ is:

Find the value of sin60^(@)cos30^(@)+cos60^(@)sin30^(@) .

Show that : cos^(2)60^(@)-sin^(2)60^(@)=-sin30^(@)

sin 60^(@)cos30^(@) is equal to: