Math, asked by madhusree2320, 10 months ago

Evaluate 2/3(cos^4 30-sin^4 45) - 3( sin^2 60 - sec^2 45) + 1/4cot^2 30

Answers

Answered by sima100srivastava

1

Step-by-step explanation:

2/3(cos4 30-sin4 45)-3(sin2 60 sec2 45)+1/4 cot2 30

Previous Question

Next Question

Similar questions

Math, 5 months ago

3) Let 2.3 be the measured value of x. If the absolute error occurred in the measurement is less that 0.01, then (A) x∈(a,b) such that b − a < 0.01 (B) x∈(a,b) such that b − a > 0.01 (C) x∈(a,b) such that b − a = 0.01 (D) x∈(a,b) such that b − a < 0.02 Hint. | x − xa | < k ⇔ xa − k < x < xa + k, here k = 0.01...

Social Sciences, 5 months ago

From centuries untouch ability was social evil. many castes were considered inferior. under which article of the Constitution i...

Math, 5 months ago

Investment =6000 Nominal Interest rate=12% Period = 15 years Compounded quarterly Find maturity after 15 year?

Chemistry, 10 months ago

Example of thermal decomposition reaction used in metallurgy...

English, 10 months ago

Essay on positive and negative impact of science on our environment...

English, 1 year ago

Why does the author develop respect towards nicola and jacopa?

English, 1 year ago

Why does mark antony call caesar a bleeding piece of earth?

Physics, 1 year ago

Why does a pencil appear bent when it is partially deep in water?