" (iii) "(c0s)/(sec30^(@)+c0)

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^@ )

Prove that: = (("sin" 0^@+cos30^(@))("sin" 30^(@)+"tan" 45^(@)))/(("tan" 30^(0)+cot60^(@))(sec60^(@)-c"osec"90^(@)))=(9)/(8)

cos e c(360^0)/7+cos e c(540^0)/7= cos e c(180^0)/7 (b) cos e c(90^0)/7 sec(180^0)/7 (d) sec(90^0)/7

cos e c(360^0)/7+cos e c(540^0)/7= cos e c(180^0)/7 (b) cos e c(90^0)/7 sec(180^0)/7 (d) sec(90^0)/7

cos e c(360^0)/7+cos e c(540^0)/7= (a) cosec(180^0)/7 ,(b) cosec(90^0)/7 , (c) sec(180^0)/7 , (d) sec(90^0)/7

The value of ((30), (0))((30), (10))-((30), (1))((30),( 11)) +(30 2)(30 12)++(30 20)(30 30)= ^60 C 20 b. ^30 C 10 c. ^60 C 30 d. ^40 C 30

The value of ((30), (0))((30), (10))-((30), (1))((30),( 11)) +(30 2)(30 12)++(30 20)(30 30)= a. ^60 C 20 b. ^30 C 10 c. ^60 C 30 d. ^40 C 30

The value of ((30), (0))((30), (10))-((30), (1))((30),( 11)) +((30), (2))((30), (12))+.....+((30), (20))((30), (30))= ^60 C 20 b. ^30 C 10 c. ^60 C 30 d. ^40 C 30

In Figure, if B P||C Q and A C=B C , then the measure of x is (a) 20^0 (b) 25^0 (c) 30^0 (d) 35^0