Q 1: Show that sec^{2} + cosec^{2} = sec^{2} cosec^{2} Answer:

Q 2: Prove that sec (1  sin )(sec + tan ) = 1 Answer:

Q 3: Show that (1/cos )  cos = tan . sin Answer:

Q 4: Show that (sin + cos )^{2} + (sin  cos )^{2} = 2 Answer:

Q 5: Show that cos^{3} + sin^{3} = (cos + sin )(1  sin cos ) Answer:

Q 6: Show that cot + tan = sec . cosec for 0^{0} < < 90^{0} Answer:

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!

