Question
If A and B are complementary angles, then the
value of- sin A cos B + cos A sin B – tan A tan B + sec 2 A – cot 2 B is–Solution
sin A cos B + cos A sin B – tan A tan B + sec2 A – cot2 B
= sinA sin A + cosA cosA – tanA. cot A + sec2A – tan2B
= (sin2A + cos2A) – 1 + (1)
= 1 – 1 + 1
= 1
Largest share of horticultural crops in the fiscal year 2021?
Cotton is derived from which part of the cotton plant?
What principle ensures that extension activities aim for the satisfaction of the farmers and their families?
Which type of silk is spun from open-ended cocoons and is produced by Philosamia ricini, which mainly feeds on castor leaves?
Which of the following instrument is used for measurement of specific heat?
Which one of the following food colours is NOT permitted to be used in foods?
Who is considered the Father of Agricultural Engineering in India?
The market where the produce is either finally disposed off to the consumer (or) processors (or) assembled for export is called as
Which of the following plant hormones is responsible for delaying leaf senescence and is known as the "anti-aging hormone"?
Headquarter of World Agro-Forestry Cente is located at:
Relevant for Exams:
