Math, asked by nikhilkumishra1163, 9 months ago

Prove that cos (30°-a)cos(30°+a)+cos (45°-a)cos (45°+a)=cos2a+1/4

Answers

Answered by shreeyanshamis

1

Answer:

Here’s your answer. Hope it helps you. Please mark as brainliest if it’s helpful.

Step-by-step explanation:

Attachments:

Previous Question

Next Question

Similar questions

Biology, 5 months ago

Explain the statement recessive character is always pure...

CBSE BOARD XII, 5 months ago

There is no limit of the frequency of withdrawal from a...

Math, 5 months ago

In how many years rupee 4000 amount to rupee 5324 at 10 percent compound interest...

Economy, 9 months ago

President of indian bankruptcy and insolvency board of india...

Chemistry, 9 months ago

Oxidation statesband magnetic moments of d block elements...

History, 11 months ago

How did innovations in manufacturing lead to improvements in transportation? A. Goods were produced efficiently and needed more efficient transportation. B. Goods became more valuable and required safer transportation. C. Inventions used in textile production also improved transportation systems. D. Multiple cottage industries meant an increased need for travel to cities.

Math, 11 months ago

Solve 3 1/4 % of 500...

Geography, 11 months ago

Name three type of commercial farming...