Questions

If cos(A-B) - cos(A+B) = x, then the value of x is

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Some with natural _______________ would love to be in a scenic view and stare out of the window. Those nestlings could one day become a great biologist __________ awildlife photographer or landscape artist to earn fame. Some always love to chit-chat with friends or family: encourage them so they have the ability to ___________. Itis a gift ____________ verbal or linguistic creativity when they can tell stories, write essays, and converse easily with people. This __________ opportunities to them to bean orator, writer, poet, scholar or teacher.

This __________ opportunities to them

The law of demand states that

If for the year a country's GDP was $990 million, consumer spending was $630 million, investment by businesses was $110 million, exports were $55 million and imports were $45 million, calculate government spending?

What are the organs similar in basic structure/shape, modified to perform different functions called?

The motile germ cell is called a/an

A lens has a power +2.0 D. The type of lens and its focal length will be

Which among the following is not an environment friendly mode of producing electricity?