Question

What is the value of sin²-Cos²=?

Answer 1

Answer:

Hey mate,

Here is ur answer.....

☆ sin²+ cos²= 1

OTHER BASIC PROPERTIES OF TRIGNOMETRY:

☆ sec²- tan² = 1

☆ cosec²= 1+ cot²

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Answer 2

The value of sin²-Cos²= 1

The value of sin² - cos² can be found by using the trigonometric identity:

sin²(x) - cos²(x) = sin²(x) - (1 - sin²(x)) = sin²(x) - 1 + sin²(x) = 2sin²(x) - 1.

There are many trigonometric identities, but some of the most commonly used include:

• Pythagorean identities: These are two identities that relate the sine, cosine, and tangent of an angle to the lengths of the sides of a right triangle. The two identities are:

sin²x + cos²x = 1

1 + tan²x = sec²x

• reciprocal identities: These identities express the reciprocal trigonometric functions in terms of the original functions. They are:

csc(x) = 1/sin(x)

sec(x) = 1/cos(x)

cot(x) = 1/tan(x)

• quotient identities: These identities express the quotient of two trigonometric functions in terms of the original functions. They are:

tan(x) = sin(x)/cos(x)

cot(x) = cos(x)/sin(x)

• co-function identities: These identities express the trigonometric functions of complementary angles in terms of the original functions. They are:

sin(90-x) = cos(x)

cos(90-x) = sin(x)

tan(90-x) = cot(x)

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